Encycolorpedia

#859fa4 Hex Code Couleur

Peintures assorties:

#859fa4 Paint ChipLe code hexadécimal de la couleur #859fa4 est une teinte de couleur cyan. Dans le modèle de couleur RVB #859fa4 est constitué de 52.16 % de rouge, 62.35 % de vert et le bleu à 64.31 %. En l'espace colorimétrique HSL #859fa4 a une teinte de 190° (degrés), la saturation 15 % saturation et la légèreté 58 %. Cette couleur a une longueur d'onde approximatif de 487.96 nm.

Variations de couleur

Noms de Couleur

Schémas de couleurs

Télécharger: GIMP GPL Adobe ASE (Adobe Swatch Exchange) Sketch Palette

#859fa4 gradient linéaire à complémentarité #a48985

  1. #859fa4
  2. #8b9b9f
  3. #91989a
  4. #969494
  5. #9b918f
  6. #a08d8a
  7. #a48985

Couleurs monochromatiques

  1. #698287
  2. #728b90
  3. #7b959a
  4. #859fa4
  5. #8fa9ae
  6. #99b3b8
  7. #a2bdc2

Teintes et nuances

#859fa4 au blanc

  1. #859fa4
  2. #99aeb3
  3. #adbec1
  4. #c1ced1
  5. #d5dee0
  6. #eaeeef
  7. #ffffff / #fff

#859fa4 au noir

  1. #859fa4
  2. #6e8387
  3. #57676a
  4. #424d4f
  5. #2d3436
  6. #1a1d1e
  7. #000000 / #000

Couleurs de peinture

Peintures assorties

Peintures similaires

  1. Dulux

    1. ★ 50BG 32/114
      #839fa6
      ΔE = 0.991 / LRV ≈ 32.4%
    2. Winter Teal 2
      #7a9aa6
      ΔE = 3.941 / LRV ≈ 30.0%
  2. Devoe Paint

    1. ★ Balkan Sea / 50BG 32/114
      #859ea1
      ΔE = 1.033 / LRV ≈ 32.0%
    2. Lakefront / 90BG 31/124
      #8399a2
      ΔE = 3.047 / LRV ≈ 30.2%
  3. Tamiya

    1. ★ Tamiya 86526, AS26
      #84a0a3
      ΔE = 1.184 / LRV ≈ 32.7%
  4. Valspar Paint

    1. ★ Grand Boulevard X108R204C
      #819da1
      ΔE = 1.192 / LRV ≈ 31.4%
    2. Endless Shadows X97R214C
      #91999a
      ΔE = 4.777 / LRV ≈ 31.1%
  5. California Paints

    1. ★ New World
      #809da3
      ΔE = 1.222 / LRV ≈ 31.3%
    2. DEC 792 - Denim Wash
      #91a2a6
      ΔE = 2.815 / LRV ≈ 34.6%
  6. Peintures MF

    1. ★ Pardon
      #89a2a6
      ΔE = 1.276 / LRV ≈ 33.9%
    2. Sommet bleu
      #8c9eaa
      ΔE = 4.381 / LRV ≈ 32.9%
  7. Colortrend

    1. ★ Cobalt Frieze
      #84a2a6
      ΔE = 1.426 / LRV ≈ 33.5%
    2. 0505
      #8f9da8
      ΔE = 4.787 / LRV ≈ 32.8%
  8. Sanderson

    1. ★ Danbury
      #819fa7
      ΔE = 1.568 / LRV ≈ 32.3%
  9. Evonik-Degussa

    1. ★ 461
      #82a1a4
      ΔE = 1.719 / LRV ≈ 32.9%
    2. 3242T Miner Gray
      #8397a1
      ΔE = 4.023 / LRV ≈ 29.5%
  10. General Paint

    1. ★ Grieving / CL 3064M
      #8ca2a5
      ΔE = 1.847 / LRV ≈ 34.1%
    2. Tembleque / CL 3054M
      #8aa6a8
      ΔE = 2.904 / LRV ≈ 35.5%
  11. Sigma

    1. ★ Cool Blue / S 4010-B30G
      #879c9e
      ΔE = 1.950 / LRV ≈ 31.4%
    2. Cool Blue / 5329 B
      #7f99a0
      ΔE = 2.425 / LRV ≈ 29.8%
  12. Behr

    1. ★ Aqua Gray BNC-18
      #889ea6
      ΔE = 1.951 / LRV ≈ 32.4%
    2. Teton Blue N490-4
      #8c99a2
      ΔE = 4.490 / LRV ≈ 31.0%
  13. Bristol

    1. ★ Foggy Day / P119-C4
      #7d9ba1
      ΔE = 2.019 / LRV ≈ 30.4%
    2. Trojan Grey / P118-C4
      #809fab
      ΔE = 3.285 / LRV ≈ 32.3%
  14. Nippon Paint

    1. ★ Sleepyhead / NP N 2018 T
      #899e9f
      ΔE = 2.149 / LRV ≈ 32.3%
    2. Whetstone / NP N 1994 T
      #8b9596
      ΔE = 5.006 / LRV ≈ 29.2%
  15. Dutch Boy

    1. ★ Manatee
      #849ba3
      ΔE = 2.167 / LRV ≈ 31.0%
    2. Wickett
      #8c989e
      ΔE = 4.099 / LRV ≈ 30.5%
  16. Sherwin-Williams

    1. ★ Delft - 9134
      #8b9fa0
      ΔE = 2.283 / LRV ≈ 32.8%
    2. Aquitaine - 9057
      #88abb4
      ΔE = 4.742 / LRV ≈ 37.7%
  17. Vallejo

    1. Vallejo 70.973 #108
      #879c9d
      ΔE = 2.325 / LRV ≈ 31.4%
  18. Nerolac

    1. Rainstorm - 4286
      #84a3ac
      ΔE = 2.397 / LRV ≈ 34.1%
    2. Cardamom - 4322
      #80a6a8
      ΔE = 3.818 / LRV ≈ 34.7%
  19. Kelly-Moore

    1. Breezy Indigo / KM3166-2
      #849ea8
      ΔE = 2.428 / LRV ≈ 32.2%
    2. Megan's Bay / KM896-D
      #8c9ba5
      ΔE = 4.225 / LRV ≈ 31.7%
  20. Glidden

    1. Aqua Smoke / PPG1034-5
      #8c9fa0
      ΔE = 2.430 / LRV ≈ 32.9%
    2. Wintery Grey / 30BG 36/051
      #99a5a9
      ΔE = 4.770 / LRV ≈ 36.5%
  21. Natural Color System / NCS

    1. S 3010-B30G
      #889e9e
      ΔE = 2.523 / LRV ≈ 32.2%
    2. S 3010-B10G
      #8a9a9e
      ΔE = 2.739 / LRV ≈ 31.0%
  22. Fired Earth

    1. Storm
      #879b9c
      ΔE = 2.563 / LRV ≈ 31.0%
  23. Mylands of London

    1. Shadow Blue
      #7a9ba2
      ΔE = 2.607 / LRV ≈ 30.2%
    2. Sea Blue
      #759aa0
      ΔE = 3.641 / LRV ≈ 29.4%
  24. Alcro

    1. Frost Parlemor
      #8ca6aa
      ΔE = 2.652 / LRV ≈ 35.7%
    2. Ocean Metallic
      #829b99
      ΔE = 3.809 / LRV ≈ 30.5%
  25. Diamond Vogel

    1. North Beach Blue / 0485
      #8ba1a1
      ΔE = 2.663 / LRV ≈ 33.6%
    2. Nichols Beach / H048
      #84979a
      ΔE = 3.171 / LRV ≈ 29.4%
  26. Olympic

    1. Aqua Smoke C58-4
      #8d9e9f
      ΔE = 2.730 / LRV ≈ 32.6%
    2. Quicksilver D51-4
      #929fa7
      ΔE = 4.122 / LRV ≈ 33.7%
  27. Model Master

    1. Model Master 1721
      #899da6
      ΔE = 2.746 / LRV ≈ 32.2%
  28. Jotun

    1. 5341 / Prismegrønn
      #8d9c9f
      ΔE = 2.774 / LRV ≈ 31.9%
    2. 4153 / Blåmann
      #89959d
      ΔE = 5.057 / LRV ≈ 29.2%
  29. Ralph Lauren

    1. Sanctuary / RLVM273
      #90a4a7
      ΔE = 2.774 / LRV ≈ 35.3%
    2. Light Sky / RLIB221
      #84a9b3
      ΔE = 4.435 / LRV ≈ 36.5%
  30. Brighto Paints

    1. 5-34-4 Dawn Glow
      #819ba5
      ΔE = 2.786 / LRV ≈ 30.8%
    2. 5-37-4 Silver Lining
      #95a1a8
      ΔE = 4.381 / LRV ≈ 34.7%
  31. Opaltone / OMS

    1. 5393
      #88999e
      ΔE = 2.792 / LRV ≈ 30.5%
    2. 5400
      #809695
      ΔE = 4.467 / LRV ≈ 28.6%
  32. Dunn-Edwards

    1. Cape Cod Blue / 737
      #91a2a6
      ΔE = 2.815 / LRV ≈ 34.6%
    2. Soft Pumice / 770
      #949ea2
      ΔE = 4.110 / LRV ≈ 33.4%
  33. Crown Paint

    1. Classic Duck Egg
      #90a5a9
      ΔE = 2.866 / LRV ≈ 35.7%
    2. Etiquette
      #91a4a9
      ΔE = 2.954 / LRV ≈ 35.4%
  34. Ford

    1. Pastel Steel Blue
      #7c989f
      ΔE = 2.912 / LRV ≈ 29.2%
    2. Light Blue
      #77989f
      ΔE = 3.537 / LRV ≈ 28.9%
  35. Tollens

    1. T2027-6
      #82a3a4
      ΔE = 2.918 / LRV ≈ 33.6%
    2. TF249-3
      #8aacb0
      ΔE = 4.768 / LRV ≈ 38.0%
  36. GM / General Motors

    1. Light Jadestone
      #829da8
      ΔE = 2.919 / LRV ≈ 31.7%
    2. Medium Green
      #71999c
      ΔE = 4.852 / LRV ≈ 28.7%
  37. CIL

    1. Seacliff
      #8aa7ad
      ΔE = 2.936 / LRV ≈ 36.1%
    2. Shadow Play
      #93a0a8
      ΔE = 4.230 / LRV ≈ 34.2%
  38. Caparol

    1. 68 5 160 / Mint 10
      #809c9c
      ΔE = 2.946 / LRV ≈ 30.8%
    2. 73 3 200 / Verona 45
      #90a8b0
      ΔE = 3.957 / LRV ≈ 37.1%
  39. Colorhouse

    1. Water .05
      #82979d
      ΔE = 3.019 / LRV ≈ 29.3%
  40. Tikkurila

    1. 0515 / Smoke blue
      #829ba6
      ΔE = 3.234 / LRV ≈ 30.9%
    2. 2113
      #92a0a7
      ΔE = 3.686 / LRV ≈ 34.0%
  41. Beckers

    1. Tromb 769 / S 5010-R90B
      #8ba4ae
      ΔE = 3.239 / LRV ≈ 35.1%
  42. Wattyl

    1. Smokey Wisp / A35W
      #909da0
      ΔE = 3.240 / LRV ≈ 32.6%
    2. Scandinavian Grey / A34W
      #959da2
      ΔE = 4.755 / LRV ≈ 33.1%
  43. New Look

    1. Listening Waters / A08-06
      #909da0
      ΔE = 3.240 / LRV ≈ 32.6%
  44. Federal Standard

    1. Federal Standard 36329
      #849899
      ΔE = 3.259 / LRV ≈ 29.7%
    2. Federal Standard 26329
      #98a6a7
      ΔE = 4.731 / LRV ≈ 36.7%
  45. Porter Paints

    1. Cathedral Glass / 455-5
      #79989c
      ΔE = 3.329 / LRV ≈ 28.9%
    2. Serene Stream / 551-5
      #7f9daa
      ΔE = 3.802 / LRV ≈ 31.5%
  46. Resene

    1. Powder Blue B72-011-221
      #929fa2
      ΔE = 3.355 / LRV ≈ 33.5%
    2. Awash B69-031-226
      #739ca9
      ΔE = 4.912 / LRV ≈ 30.3%
  47. Pantone / PMS

    1. 2177 C
      #7fa0ac
      ΔE = 3.373 / LRV ≈ 32.6%
    2. 3526 C
      #7a939c
      ΔE = 4.832 / LRV ≈ 27.4%
  48. Benjamin Moore

    1. Boca Raton Blue / 711
      #83a4a4
      ΔE = 3.406 / LRV ≈ 34.1%
    2. Atmospheric / AF-500
      #899e9b
      ΔE = 4.014 / LRV ≈ 32.1%
  49. Coronado Paint

    1. 8265 - Brookview
      #88989f
      ΔE = 3.494 / LRV ≈ 30.2%
    2. 7480 - Acapulco Aqua
      #80a4a3
      ΔE = 4.156 / LRV ≈ 33.8%
  50. Sto

    1. 35421
      #7fa6ae
      ΔE = 3.604 / LRV ≈ 34.8%
    2. 35431
      #80959c
      ΔE = 3.820 / LRV ≈ 28.5%
  51. ICI Paints

    1. 4102 Shadow Play 90BG 35/068
      #8b9aa2
      ΔE = 3.638 / LRV ≈ 31.2%
    2. Brittany Inn 70BG 31/124
      #7695a0
      ΔE = 4.901 / LRV ≈ 27.9%
  52. Earthpaint

    1. 5-32-4 Sentimental
      #79969c
      ΔE = 3.682 / LRV ≈ 28.3%
    2. 5-33-4 Iceland
      #78939d
      ΔE = 5.092 / LRV ≈ 27.3%
  53. Games Workshop - Citadel

    1. Dawnstone
      #919c9f
      ΔE = 3.747 / LRV ≈ 32.3%
    2. Celestra Grey
      #90a8a8
      ΔE = 4.161 / LRV ≈ 36.8%
  54. Sikkens

    1. Q0.10.60
      #8da9ac
      ΔE = 3.747 / LRV ≈ 37.0%
    2. S0.05.55
      #8f9699
      ΔE = 5.243 / LRV ≈ 30.0%
  55. Craig & Rose

    1. The Island
      #789aa5
      ΔE = 3.816 / LRV ≈ 29.8%
  56. Brillux

    1. 66.03.18
      #92a1a9
      ΔE = 3.841 / LRV ≈ 34.5%
    2. 75.09.18
      #879d98
      ΔE = 5.005 / LRV ≈ 31.5%
  57. Sico

    1. 6159-52 Almost Blue
      #77a0a3
      ΔE = 3.865 / LRV ≈ 31.7%
    2. 6209-41 Grey Fox
      #96a0a3
      ΔE = 4.270 / LRV ≈ 34.3%
  58. Magnolia Home

    1. Sir Drake / JG-02
      #869a98
      ΔE = 3.966 / LRV ≈ 30.4%
    2. Well Watered / JG-69
      #879b98
      ΔE = 4.281 / LRV ≈ 30.9%
  59. Toyo Ink

    1. CF10673
      #769b9d
      ΔE = 3.968 / LRV ≈ 29.7%
    2. CF10781
      #94a3a1
      ΔE = 4.655 / LRV ≈ 35.1%
  60. Reaper Master

    1. Weathered Stone (9087)
      #96a5a9
      ΔE = 4.062 / LRV ≈ 36.3%
  61. Old Citadel

    1. Astronomicon Grey
      #96a5a9
      ΔE = 4.062 / LRV ≈ 36.3%
  62. Vallejo Model Color

    1. Pale Blue Grey (905)
      #96a5a9
      ΔE = 4.062 / LRV ≈ 36.3%
  63. Vallejo Game Color

    1. Heavy Bluegrey (144)
      #96a5a9
      ΔE = 4.062 / LRV ≈ 36.3%
  64. Humbrol

    1. 129 Us Gull Grey
      #939d9e
      ΔE = 4.195 / LRV ≈ 32.8%
    2. 167 Raf Barley Grey
      #8f989d
      ΔE = 4.658 / LRV ≈ 30.7%
  65. Rodda Paint

    1. Standish Blue H48
      #829497
      ΔE = 4.198 / LRV ≈ 28.2%
    2. Meetinghouse Blue H46
      #769cab
      ΔE = 5.177 / LRV ≈ 30.6%
  66. Pratt & Lambert

    1. Abstract Blue 24-25
      #89a6a4
      ΔE = 4.223 / LRV ≈ 35.3%
    2. Randolph Blue-Gray CW616
      #8897a0
      ΔE = 4.386 / LRV ≈ 29.9%
  67. KILZ

    1. Estuary / D842
      #729ca2
      ΔE = 4.248 / LRV ≈ 30.0%
    2. Virtue / D911
      #749999
      ΔE = 4.984 / LRV ≈ 28.8%
  68. Vista Paint

    1. Forest Falls
      #7f9796
      ΔE = 4.253 / LRV ≈ 28.8%
    2. Pools of Blue
      #859495
      ΔE = 4.681 / LRV ≈ 28.3%
  69. Berger

    1. Forest Falls / 8343
      #7f9796
      ΔE = 4.253 / LRV ≈ 28.8%
    2. Brookview / 8265
      #8e9ca6
      ΔE = 4.416 / LRV ≈ 32.3%
  70. Little Greene

    1. Grey Stone
      #8aa0ad
      ΔE = 4.287 / LRV ≈ 33.6%
    2. James
      #8597a3
      ΔE = 4.943 / LRV ≈ 29.8%
  71. Scib Paints

    1. Brookview / 8265
      #8e9ca6
      ΔE = 4.416 / LRV ≈ 32.3%
    2. Pols of Blue / 8336
      #859495
      ΔE = 4.681 / LRV ≈ 28.3%
  72. AMC

    1. Silver Green
      #85a4a1
      ΔE = 4.428 / LRV ≈ 34.1%
    2. Silver Blue
      #82949d
      ΔE = 4.715 / LRV ≈ 28.4%
  73. Audi

    1. Smoke Blue / L51Z
      #8d979a
      ΔE = 4.445 / LRV ≈ 30.1%
    2. Bahia Blue / L50A
      #7d9baa
      ΔE = 4.865 / LRV ≈ 30.7%
  74. Laura Ashley

    1. 1310 Powder Blue 4
      #799dab
      ΔE = 4.527 / LRV ≈ 31.1%
  75. Clark+Kensington

    1. Concrete / 37A-3
      #95a2aa
      ΔE = 4.531 / LRV ≈ 35.1%
    2. English Castle / N-C20
      #969ca0
      ΔE = 5.187 / LRV ≈ 32.8%
  76. Taubmans

    1. Dakota / T75-5
      #7ea7b2
      ΔE = 4.553 / LRV ≈ 35.3%
    2. Clear Brook / T12 47.F10
      #8c9a97
      ΔE = 4.902 / LRV ≈ 30.9%
  77. British Standard

    1. BS 4800 18 B 21 - Squirrel grey / Tideway
      #949c9e
      ΔE = 4.555 / LRV ≈ 32.5%
    2. BS381 626 - Camouflage grey
      #959d9f
      ΔE = 4.578 / LRV ≈ 33.0%
  78. Dupont

    1. CAS908
      #74959c
      ΔE = 4.566 / LRV ≈ 27.6%
    2. CAS900
      #859395
      ΔE = 4.892 / LRV ≈ 28.0%
  79. PPG Pittsburgh Paints

    1. Day At The Oaks 7053-2
      #7d9896
      ΔE = 4.566 / LRV ≈ 29.0%
    2. Wando Inlet Chs-39
      #8697a2
      ΔE = 4.718 / LRV ≈ 29.8%
  80. Martha Stewart Living

    1. Glider Green C17
      #77a0a0
      ΔE = 4.644 / LRV ≈ 31.6%
    2. Tree Swing Green C18
      #779997
      ΔE = 5.149 / LRV ≈ 28.9%
  81. Cloverdale Paint

    1. Teal Tease / 7479
      #779b9a
      ΔE = 4.690 / LRV ≈ 29.7%
    2. Pools Of Blue / 8336
      #869494
      ΔE = 4.984 / LRV ≈ 28.4%
  82. RAL

    1. RAL 7001 / Silver grey
      #8a9597
      ΔE = 4.722 / LRV ≈ 29.1%
  83. TRUMATCH

    1. 29-d5
      #76a4ae
      ΔE = 4.754 / LRV ≈ 33.5%
    2. 25-d4
      #7faaaf
      ΔE = 4.969 / LRV ≈ 36.4%
  84. Chrysler

    1. Gray
      #8a97a0
      ΔE = 4.758 / LRV ≈ 30.1%
    2. Cascade Gray
      #849297
      ΔE = 5.101 / LRV ≈ 27.7%
  85. Asian Paints

    1. Dark Water / 8336
      #859395
      ΔE = 4.892 / LRV ≈ 28.0%
    2. Wedgewood / 0U42
      #7795a1
      ΔE = 5.083 / LRV ≈ 28.0%
  86. Duron

    1. Underseas
      #819a96
      ΔE = 4.895 / LRV ≈ 30.0%
  87. Crown Diamond

    1. 7319-41 Yukon Sky
      #8eacb4
      ΔE = 4.932 / LRV ≈ 38.5%
    2. 7355-41 Thameside
      #98a3aa
      ΔE = 5.013 / LRV ≈ 35.8%
  88. Flügger

    1. Blå Fjord (U-571)
      #91989c
      ΔE = 5.054 / LRV ≈ 30.9%
  89. Dulux Australia

    1. Aerobus / GR18
      #8d98a1
      ΔE = 5.055 / LRV ≈ 30.7%
    2. Lycian Way / D9
      #7999a8
      ΔE = 5.219 / LRV ≈ 29.7%

#859fa4 Exemples de code HTML et CSS

#859fa4 premier plan

Il n'est pas chance qui ne retourne.

<p style="color: #859fa4">…</p>

#859fa4 fond

Bon cœur ne peut mentir.

<p style="background-color: #859fa4">…</p>

#859fa4 ombre du texte

Le temps et l'usage rendent l'homme sage.

<p style="text-shadow: 0.1em 0.1em 0.15em #859fa4">…</p>

Composition des couleurs

Conversions d'espace colorimétrique

Décimal
8757156
Binaire
10000101, 10011111, 10100100
Hexadécimal
#859fa4
LRV
≈ 32.5%
Hexadécimal court le plus proche
#899 ΔE = 3.782
RGB
rgb(133, 159, 164)
RGBA
rgba(133, 159, 164, 1.0)
chromaticité rg
r: 0.292, g: 0.349, b: 0.360
RYB
rouge: 52.157%, jaune: 57.702%, bleu: 64.314%
Android / android.graphics.Color
-8020060 / 0xff859fa4
HSL
hsl(190, 15%, 58%)
HSLA
hsla(190, 15%, 58%, 1.0)
HSV / HSB
teinte: 190° (189.677), saturation: 19% (0.189), valeur: 64% (0.643)
HSP
teinte: 189.677, saturation: 18.902%, luminosité perçue: 59.725%
HSLuv (HUSL)
H: 206.863, S: 29.057, L: 63.723
Cubehelix
H: -178.163, S: 0.192, L: 0.595
TSL
T: -1.663, S: 0.060, L: 0.595
CMYK
cyan: 19% (0.189), magenta: 3% (0.030), jaune: 0% (0.000), noir: 36% (0.357)
CMY
cyan: 48% (0.478), magenta: 38% (0.376), jaune: 36% (0.357)
XYZ
X: 28.770, Y: 32.462, Z: 39.865
xyY
x: 0.285, y: 0.321, Y: 32.462
CIELab
L: 63.723, a: -7.919, b: -5.624
CIELuv
L: 63.723, u: -13.831, v: -7.006
CIELCH / LCHab
L: 63.723, C: 9.713, H: 215.383
CIELUV / LCHuv
L: 63.723, C: 15.505, H: 206.863
Hunter-Lab
L: 56.976, a: -9.573, b: -1.601
CIECAM02
J: 53.587, C: 16.496, h: 211.632, Q: 144.225, M: 14.425, s: 31.626, H: 268.705
OSA-UCS
luminosité: -10.094, jaune: -0.992, vert: 1.691
LMS
L: 28.554, M: 35.105, S: 39.731
YCbCr
Y: 146.389, Cb: 134.043, Cr: 116.231
YCgCo
Y: 153.750, Cg: 5.250, Co: 25.500
YDbDr
Y: 151.796, Db: 18.365, Dr: 35.743
YPbPr
Y: 153.822, Pb: 5.490, Pr: -13.230
xvYCC
Y: 148.106, Cb: 132.823, Cr: 116.378
YIQ
Y: 151.796, I: -17.095, Q: -3.942
YUV
Y: 151.796, U: 6.007, V: -16.490
Système colorimétrique de Munsell
2.5B 6/2 ΔE = 2.007
Couleur de marque
Wii ΔE = 9.726

Couleurs aléatoires

Rouge

Vert

Bleu