1. 

   Natural Color System / NCS - S 3040-R90B

   hsl(211, 0%, 0%) / cyan: 0.60, magenta: 0.31, yellow: 0.00, key: 0.36 / LRV ≈ 15.3%

2. 

   Sigma - Cool Blue / S 3040-R90B

   hsl(204, 0%, 1%) / cyan: 0.50, magenta: 0.20, yellow: 0.00, key: 0.29 / LRV ≈ 25.9%

3. 

   Natural Color System / NCS - S 3040-Y30R

   hsl(25, 1%, 0%) / cyan: 0.00, magenta: 0.42, yellow: 0.71, key: 0.22 / LRV ≈ 24.6%

4. 

   Natural Color System / NCS - S 3040-Y80R

   hsl(8, 1%, 1%) / cyan: 0.00, magenta: 0.56, yellow: 0.64, key: 0.23 / LRV ≈ 19.0%

5. 

   Natural Color System / NCS - S 3040-G50Y

   hsl(70, 0%, 0%) / cyan: 0.09, magenta: 0.00, yellow: 0.55, key: 0.43 / LRV ≈ 25.5%

6. 

   Natural Color System / NCS - S 3040-Y20R

   hsl(29, 1%, 0%) / cyan: 0.00, magenta: 0.37, yellow: 0.72, key: 0.22 / LRV ≈ 27.0%

7. 

   Natural Color System / NCS - S 3040-B30G

   hsl(186, 1%, 0%) / cyan: 0.73, magenta: 0.07, yellow: 0.00, key: 0.44 / LRV ≈ 18.9%

8. 

   Natural Color System / NCS - S 3040-R20B

   hsl(347, 0%, 0%) / cyan: 0.00, magenta: 0.57, yellow: 0.45, key: 0.32 / LRV ≈ 14.7%

9. 

   Natural Color System / NCS - S 3040-Y

   hsl(40, 1%, 0%) / cyan: 0.00, magenta: 0.24, yellow: 0.70, key: 0.29 / LRV ≈ 28.3%

10. 

    Natural Color System / NCS - S 3040-Y40R

    hsl(21, 1%, 1%) / cyan: 0.00, magenta: 0.46, yellow: 0.71, key: 0.22 / LRV ≈ 23.1%