black
#000000
#21756B
#21756B
Color Values
| Format | #000000 | #21756B |
|---|---|---|
| HEX | #000000 | #21756B |
| RGB | 0, 0, 0 | 33, 117, 107 |
| HSL | 0.0, 0.0%, 0.0% | 172.9, 56.0%, 29.4% |
| HSV | 0.0, 0.0%, 0.0% | 172.9, 71.8%, 45.9% |
| CMYK | 0%, 0%, 0%, 100% | 71.8%, 0.0%, 8.5%, 54.1% |
| OKLCH | 0.0 0.0 0.0 | 0.5107 0.0797 183.6 |
Contrast & Accessibility
3.82:1
AA Fail
AA Large Pass
AAA Fail
AAA Large Fail
Text Readability
The quick brown fox jumps over the lazy dog
Text: #21756B → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #21756B
Color Difference (Delta E)
52.04
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #21756B);
background: linear-gradient(135deg, #000000, #21756B);