1. 

   Natural Color System / NCS - S 8010-R90B

   hsl(209, 0%, 0%) / cyan: 0.46, magenta: 0.22, yellow: 0.00, key: 0.77 / LRV ≈ 2.6%

2. 

   Beckers - Supernova 773 / S 8010-R90B

   hsl(245, 0%, 0%) / cyan: 0.30, magenta: 0.33, yellow: 0.00, key: 0.73 / LRV ≈ 3.0%

3. 

   Sigma - Cool Blue / S 8010-R90B

   hsl(203, 0%, 0%) / cyan: 0.32, magenta: 0.12, yellow: 0.00, key: 0.72 / LRV ≈ 4.7%

4. 

   Natural Color System / NCS - S 8010-R50B

   hsl(286, 0%, 0%) / cyan: 0.08, magenta: 0.34, yellow: 0.00, key: 0.80 / LRV ≈ 1.9%

5. 

   Natural Color System / NCS - S 8010-R70B

   hsl(224, 0%, 0%) / cyan: 0.38, magenta: 0.28, yellow: 0.00, key: 0.77 / LRV ≈ 2.3%

6. 

   Natural Color System / NCS - S 8010-G70Y

   hsl(63, 0%, 0%) / cyan: 0.02, magenta: 0.00, yellow: 0.29, key: 0.76 / LRV ≈ 4.6%

7. 

   Natural Color System / NCS - S 8010-Y50R

   hsl(22, 0%, 0%) / cyan: 0.00, magenta: 0.31, yellow: 0.49, key: 0.72 / LRV ≈ 3.8%

8. 

   Natural Color System / NCS - S 8010-B70G

   hsl(170, 0%, 0%) / cyan: 0.47, magenta: 0.00, yellow: 0.08, key: 0.79 / LRV ≈ 3.0%

9. 

   Natural Color System / NCS - S 8010-B50G

   hsl(177, 0%, 0%) / cyan: 0.37, magenta: 0.00, yellow: 0.02, key: 0.79 / LRV ≈ 3.2%

10. 

    Natural Color System / NCS - S 8010-G10Y

    hsl(131, 0%, 0%) / cyan: 0.30, magenta: 0.00, yellow: 0.24, key: 0.79 / LRV ≈ 3.2%