1. 

   Natural Color System / NCS - S 5040-G30Y

   hsl(100, 0%, 0%) / cyan: 0.33, magenta: 0.00, yellow: 0.50, key: 0.60 / LRV ≈ 11.2%

2. 

   Sigma - Natural Green / S 5040-G30Y

   hsl(94, 0%, 0%) / cyan: 0.23, magenta: 0.00, yellow: 0.40, key: 0.57 / LRV ≈ 13.5%

3. 

   Natural Color System / NCS - S 5040-G60Y

   hsl(60, 0%, 0%) / cyan: 0.00, magenta: 0.00, yellow: 0.58, key: 0.58 / LRV ≈ 13.6%

4. 

   Natural Color System / NCS - S 5040-B70G

   hsl(174, 1%, 0%) / cyan: 1.00, magenta: 0.00, yellow: 0.10, key: 0.64 / LRV ≈ 8.1%

5. 

   Natural Color System / NCS - S 5040-Y60R

   hsl(17, 1%, 0%) / cyan: 0.00, magenta: 0.50, yellow: 0.69, key: 0.48 / LRV ≈ 9.2%

6. 

   Natural Color System / NCS - S 5040-R70B

   hsl(232, 0%, 0%) / cyan: 0.58, magenta: 0.50, yellow: 0.00, key: 0.56 / LRV ≈ 4.6%

7. 

   Natural Color System / NCS - S 5040-G

   hsl(160, 1%, 0%) / cyan: 1.00, magenta: 0.00, yellow: 0.33, key: 0.64 / LRV ≈ 8.2%

8. 

   Natural Color System / NCS - S 5040-R20B

   hsl(338, 1%, 0%) / cyan: 0.00, magenta: 0.75, yellow: 0.48, key: 0.58 / LRV ≈ 4.1%

9. 

   Natural Color System / NCS - S 5040-B40G

   hsl(183, 1%, 0%) / cyan: 0.99, magenta: 0.05, yellow: 0.00, key: 0.62 / LRV ≈ 8.5%

10. 

    Natural Color System / NCS - S 5040-G20Y

    hsl(129, 0%, 0%) / cyan: 0.53, magenta: 0.00, yellow: 0.44, key: 0.62 / LRV ≈ 9.4%