black
#000000
#666C70
#666C70
Color Values
| Format | #000000 | #666C70 |
|---|---|---|
| HEX | #000000 | #666C70 |
| RGB | 0, 0, 0 | 102, 108, 112 |
| HSL | 0.0, 0.0%, 0.0% | 204.0, 4.7%, 42.0% |
| HSV | 0.0, 0.0%, 0.0% | 204.0, 8.9%, 43.9% |
| CMYK | 0%, 0%, 0%, 100% | 8.9%, 3.6%, 0.0%, 56.1% |
| OKLCH | 0.0 0.0 0.0 | 0.5274 0.0097 236.7 |
Contrast & Accessibility
3.94:1
AA Fail
AA Large Pass
AAA Fail
AAA Large Fail
Text Readability
The quick brown fox jumps over the lazy dog
Text: #666C70 → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #666C70
Color Difference (Delta E)
45.37
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #666C70);
background: linear-gradient(135deg, #000000, #666C70);