black
#000000
#556C6B
#556C6B
Color Values
| Format | #000000 | #556C6B |
|---|---|---|
| HEX | #000000 | #556C6B |
| RGB | 0, 0, 0 | 85, 108, 107 |
| HSL | 0.0, 0.0%, 0.0% | 177.4, 11.9%, 37.8% |
| HSV | 0.0, 0.0%, 0.0% | 177.4, 21.3%, 42.4% |
| CMYK | 0%, 0%, 0%, 100% | 21.3%, 0.0%, 0.9%, 57.6% |
| OKLCH | 0.0 0.0 0.0 | 0.5125 0.0273 193.0 |
Contrast & Accessibility
3.74:1
AA Fail
AA Large Pass
AAA Fail
AAA Large Fail
Text Readability
The quick brown fox jumps over the lazy dog
Text: #556C6B → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #556C6B
Color Difference (Delta E)
44.74
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #556C6B);
background: linear-gradient(135deg, #000000, #556C6B);