1. 

   Natural Color System / NCS - S 4050-B30G

   hsl(186, 1%, 0%) / cyan: 1.00, magenta: 0.11, yellow: 0.00, key: 0.52 / LRV ≈ 12.3%

2. 

   Sigma - Cool Blue / S 4050-B30G

   hsl(183, 1%, 0%) / cyan: 0.88, magenta: 0.05, yellow: 0.00, key: 0.49 / LRV ≈ 16.1%

3. 

   Natural Color System / NCS - S 3010-B30G

   hsl(188, 0%, 1%) / cyan: 0.14, magenta: 0.02, yellow: 0.00, key: 0.32 / LRV ≈ 38.2%

4. 

   Natural Color System / NCS - S 2030-B30G

   hsl(186, 0%, 1%) / cyan: 0.41, magenta: 0.04, yellow: 0.00, key: 0.29 / LRV ≈ 36.8%

5. 

   Natural Color System / NCS - S 1050-B30G

   hsl(184, 1%, 0%) / cyan: 0.83, magenta: 0.06, yellow: 0.00, key: 0.22 / LRV ≈ 40.0%

6. 

   Natural Color System / NCS - S 1030-B30G

   hsl(185, 0%, 1%) / cyan: 0.36, magenta: 0.03, yellow: 0.00, key: 0.20 / LRV ≈ 49.6%

7. 

   Natural Color System / NCS - S 6530-B30G

   hsl(185, 1%, 0%) / cyan: 1.00, magenta: 0.08, yellow: 0.00, key: 0.72 / LRV ≈ 4.2%

8. 

   Natural Color System / NCS - S 2020-B30G

   hsl(187, 0%, 1%) / cyan: 0.25, magenta: 0.03, yellow: 0.00, key: 0.24 / LRV ≈ 46.4%

9. 

   Natural Color System / NCS - S 2555-B30G

   hsl(186, 1%, 0%) / cyan: 1.00, magenta: 0.09, yellow: 0.00, key: 0.37 / LRV ≈ 22.8%

10. 

    Natural Color System / NCS - S 3040-B30G

    hsl(186, 1%, 0%) / cyan: 0.74, magenta: 0.07, yellow: 0.00, key: 0.39 / LRV ≈ 23.1%