1. 

   Natural Color System / NCS - S 4030-R80B

   hsl(222, 0%, 0%) / cyan: 0.45, magenta: 0.31, yellow: 0.00, key: 0.46 / LRV ≈ 11.3%

2. 

   Sigma - Cool Blue / S 4030-R80B

   hsl(212, 0%, 1%) / cyan: 0.40, magenta: 0.22, yellow: 0.00, key: 0.36 / LRV ≈ 20.3%

3. 

   Natural Color System / NCS - S 4030-R70B

   hsl(235, 0%, 0%) / cyan: 0.35, magenta: 0.33, yellow: 0.00, key: 0.45 / LRV ≈ 12.3%

4. 

   Natural Color System / NCS - S 4030-G90Y

   hsl(43, 0%, 0%) / cyan: 0.00, magenta: 0.17, yellow: 0.57, key: 0.43 / LRV ≈ 20.0%

5. 

   Natural Color System / NCS - S 4030-B

   hsl(203, 0%, 0%) / cyan: 0.53, magenta: 0.20, yellow: 0.00, key: 0.49 / LRV ≈ 12.3%

6. 

   Natural Color System / NCS - S 4030-R50B

   hsl(303, 0%, 0%) / cyan: 0.00, magenta: 0.34, yellow: 0.02, key: 0.51 / LRV ≈ 12.0%

7. 

   Natural Color System / NCS - S 4030-R30B

   hsl(339, 0%, 0%) / cyan: 0.00, magenta: 0.46, yellow: 0.30, key: 0.45 / LRV ≈ 11.7%

8. 

   Natural Color System / NCS - S 4030-Y90R

   hsl(4, 0%, 0%) / cyan: 0.00, magenta: 0.49, yellow: 0.53, key: 0.38 / LRV ≈ 13.4%

9. 

   Natural Color System / NCS - S 4030-G70Y

   hsl(55, 0%, 0%) / cyan: 0.00, magenta: 0.04, yellow: 0.49, key: 0.49 / LRV ≈ 19.8%

10. 

    Natural Color System / NCS - S 4030-Y40R

    hsl(21, 0%, 0%) / cyan: 0.00, magenta: 0.42, yellow: 0.65, key: 0.35 / LRV ≈ 16.8%