1. 

   Natural Color System / NCS - S 2005-R70B

   hsl(312, 0%, 1%) / cyan: 0.00, magenta: 0.03, yellow: 0.01, key: 0.23 / LRV ≈ 52.9%

2. 

   Sigma - Mistic Purple / S 2005-R70B

   hsl(203, 0%, 1%) / cyan: 0.06, magenta: 0.02, yellow: 0.00, key: 0.17 / LRV ≈ 60.9%

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 6030-R70B

   hsl(242, 0%, 0%) / cyan: 0.43, magenta: 0.44, yellow: 0.00, key: 0.71 / LRV ≈ 2.7%

5. 

   Natural Color System / NCS - S 3030-R70B

   hsl(238, 0%, 1%) / cyan: 0.30, magenta: 0.29, yellow: 0.00, key: 0.36 / LRV ≈ 19.0%

6. 

   Natural Color System / NCS - S 2020-R70B

   hsl(242, 0%, 1%) / cyan: 0.16, magenta: 0.17, yellow: 0.00, key: 0.23 / LRV ≈ 38.1%

7. 

   Natural Color System / NCS - S 3060-R70B

   hsl(241, 0%, 0%) / cyan: 0.59, magenta: 0.60, yellow: 0.00, key: 0.44 / LRV ≈ 5.9%

8. 

   Natural Color System / NCS - S 5020-R70B

   hsl(242, 0%, 0%) / cyan: 0.23, magenta: 0.24, yellow: 0.00, key: 0.56 / LRV ≈ 9.9%

9. 

   Natural Color System / NCS - S 0520-R70B

   hsl(240, 1%, 1%) / cyan: 0.13, magenta: 0.13, yellow: 0.00, key: 0.01 / LRV ≈ 72.8%

10. 

    Natural Color System / NCS - S 3010-R70B

    hsl(255, 0%, 1%) / cyan: 0.05, magenta: 0.07, yellow: 0.00, key: 0.35 / LRV ≈ 33.5%