1. 

   Sigma - Yellow Ocre / S 6502-Y

   hsl(80, 0%, 0%) / cyan: 0.02, magenta: 0.00, yellow: 0.05, key: 0.56 / LRV ≈ 15.6%

2. 

   Natural Color System / NCS - S 6502-Y / Pratt & Lambert - Field Gray 32-19

   hsl(32, 0%, 0%) / cyan: 0.00, magenta: 0.07, yellow: 0.14, key: 0.65 / LRV ≈ 9.1%

3. 

   Natural Color System / NCS - S 6502-G

   hsl(75, 0%, 0%) / cyan: 0.01, magenta: 0.00, yellow: 0.05, key: 0.67 / LRV ≈ 8.8%

4. 

   Natural Color System / NCS - S 6502-R

   hsl(9, 0%, 0%) / cyan: 0.00, magenta: 0.12, yellow: 0.14, key: 0.64 / LRV ≈ 8.5%

5. 

   Natural Color System / NCS - S 6502-B

   hsl(0, 0%, 0%) / cyan: 0.00, magenta: 0.00, yellow: 0.00, key: 0.68 / LRV ≈ 8.4%

6. 

   Natural Color System / NCS - S 4550-Y

   hsl(37, 1%, 0%) / cyan: 0.00, magenta: 0.30, yellow: 0.79, key: 0.51 / LRV ≈ 11.5%

7. 

   Natural Color System / NCS - S 3560-Y

   hsl(38, 1%, 0%) / cyan: 0.00, magenta: 0.32, yellow: 0.87, key: 0.38 / LRV ≈ 18.1%

8. 

   Natural Color System / NCS - S 2040-Y

   hsl(41, 1%, 1%) / cyan: 0.00, magenta: 0.21, yellow: 0.69, key: 0.12 / LRV ≈ 47.3%

9. 

   Natural Color System / NCS - S 1515-Y

   hsl(41, 1%, 1%) / cyan: 0.00, magenta: 0.12, yellow: 0.39, key: 0.07 / LRV ≈ 65.8%

10. 

    Natural Color System / NCS - S 2050-Y

    hsl(41, 1%, 1%) / cyan: 0.00, magenta: 0.23, yellow: 0.76, key: 0.16 / LRV ≈ 41.1%