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 4010-R70B

   hsl(245, 0%, 1%) / cyan: 0.08, magenta: 0.09, yellow: 0.00, key: 0.46 / LRV ≈ 21.3%

4. 

   Natural Color System / NCS - S 2030-R70B

   hsl(237, 0%, 1%) / cyan: 0.27, magenta: 0.25, yellow: 0.00, key: 0.24 / LRV ≈ 29.9%

5. 

   Natural Color System / NCS - S 1040-R70B

   hsl(236, 1%, 1%) / cyan: 0.34, magenta: 0.31, yellow: 0.00, key: 0.08 / LRV ≈ 38.6%

6. 

   Natural Color System / NCS - S 4055-R70B

   hsl(242, 0%, 0%) / cyan: 0.59, magenta: 0.61, yellow: 0.00, key: 0.58 / LRV ≈ 3.3%

7. 

   Natural Color System / NCS - S 1020-R70B

   hsl(234, 0%, 1%) / cyan: 0.16, magenta: 0.15, yellow: 0.00, key: 0.08 / LRV ≈ 59.0%

8. 

   Natural Color System / NCS - S 1555-R70B

   hsl(236, 1%, 1%) / cyan: 0.48, magenta: 0.45, yellow: 0.00, key: 0.19 / LRV ≈ 19.4%

9. 

   Natural Color System / NCS - S 8010-R70B

   hsl(246, 0%, 0%) / cyan: 0.18, magenta: 0.20, yellow: 0.00, key: 0.80 / LRV ≈ 2.3%

10. 

    Natural Color System / NCS - S 6010-R70B

    hsl(240, 0%, 0%) / cyan: 0.14, magenta: 0.14, yellow: 0.00, key: 0.62 / LRV ≈ 8.9%