1. 

   Natural Color System / NCS - S 3040-R90B

   hsl(211, 0%, 0%) / cyan: 0.60, magenta: 0.31, yellow: 0.00, key: 0.36 / LRV ≈ 15.3%

2. 

   Sigma - Cool Blue / S 3040-R90B

   hsl(204, 0%, 1%) / cyan: 0.50, magenta: 0.20, yellow: 0.00, key: 0.29 / LRV ≈ 25.9%

3. 

   Natural Color System / NCS - S 3040-G

   hsl(150, 0%, 0%) / cyan: 0.59, magenta: 0.00, yellow: 0.30, key: 0.46 / LRV ≈ 19.6%

4. 

   Natural Color System / NCS - S 3040-G90Y

   hsl(45, 0%, 0%) / cyan: 0.00, magenta: 0.17, yellow: 0.67, key: 0.33 / LRV ≈ 28.3%

5. 

   Natural Color System / NCS - S 3040-G40Y

   hsl(81, 0%, 0%) / cyan: 0.18, magenta: 0.00, yellow: 0.51, key: 0.44 / LRV ≈ 23.6%

6. 

   Natural Color System / NCS - S 3040-Y90R

   hsl(4, 0%, 1%) / cyan: 0.00, magenta: 0.56, yellow: 0.61, key: 0.27 / LRV ≈ 16.8%

7. 

   Natural Color System / NCS - S 3040-B70G

   hsl(170, 1%, 0%) / cyan: 0.72, magenta: 0.00, yellow: 0.12, key: 0.46 / LRV ≈ 20.0%

8. 

   Natural Color System / NCS - S 3040-Y70R

   hsl(12, 1%, 1%) / cyan: 0.00, magenta: 0.53, yellow: 0.66, key: 0.24 / LRV ≈ 19.5%

9. 

   Natural Color System / NCS - S 3040-R80B

   hsl(223, 0%, 0%) / cyan: 0.53, magenta: 0.38, yellow: 0.00, key: 0.35 / LRV ≈ 14.0%

10. 

    Natural Color System / NCS - S 3040-Y40R

    hsl(21, 1%, 1%) / cyan: 0.00, magenta: 0.46, yellow: 0.71, key: 0.22 / LRV ≈ 23.1%