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-R60B

   hsl(265, 0%, 0%) / cyan: 0.33, magenta: 0.56, yellow: 0.00, key: 0.60 / LRV ≈ 4.1%

4. 

   Natural Color System / NCS - S 5040-G80Y

   hsl(54, 1%, 0%) / cyan: 0.00, magenta: 0.08, yellow: 0.77, key: 0.56 / LRV ≈ 13.0%

5. 

   Natural Color System / NCS - S 5040-B50G

   hsl(180, 1%, 0%) / cyan: 1.00, magenta: 0.00, yellow: 0.00, key: 0.64 / LRV ≈ 8.6%

6. 

   Natural Color System / NCS - S 5040-Y70R

   hsl(13, 1%, 0%) / cyan: 0.00, magenta: 0.54, yellow: 0.69, key: 0.49 / LRV ≈ 8.2%

7. 

   Natural Color System / NCS - S 5040-G90Y

   hsl(46, 1%, 0%) / cyan: 0.00, magenta: 0.17, yellow: 0.72, key: 0.52 / LRV ≈ 13.6%

8. 

   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%

9. 

   Natural Color System / NCS - S 5040-R80B

   hsl(213, 1%, 0%) / cyan: 0.81, magenta: 0.44, yellow: 0.00, key: 0.55 / LRV ≈ 5.2%

10. 

    Natural Color System / NCS - S 5040-Y

    hsl(41, 1%, 0%) / cyan: 0.00, magenta: 0.23, yellow: 0.71, key: 0.48 / LRV ≈ 14.8%