black
#000000
#666571
#666571
Color Values
| Format | #000000 | #666571 |
|---|---|---|
| HEX | #000000 | #666571 |
| RGB | 0, 0, 0 | 102, 101, 113 |
| HSL | 0.0, 0.0%, 0.0% | 245.0, 5.6%, 42.0% |
| HSV | 0.0, 0.0%, 0.0% | 245.0, 10.6%, 44.3% |
| CMYK | 0%, 0%, 0%, 100% | 9.7%, 10.6%, 0.0%, 55.7% |
| OKLCH | 0.0 0.0 0.0 | 0.5119 0.0188 289.5 |
Contrast & Accessibility
3.66:1
AA Fail
AA Large Pass
AAA Fail
AAA Large Fail
Text Readability
The quick brown fox jumps over the lazy dog
Text: #666571 → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #666571
Color Difference (Delta E)
43.85
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #666571);
background: linear-gradient(135deg, #000000, #666571);