black
#000000
#666F63
#666F63
Color Values
| Format | #000000 | #666F63 |
|---|---|---|
| HEX | #000000 | #666F63 |
| RGB | 0, 0, 0 | 102, 111, 99 |
| HSL | 0.0, 0.0%, 0.0% | 105.0, 5.7%, 41.2% |
| HSV | 0.0, 0.0%, 0.0% | 105.0, 10.8%, 43.5% |
| CMYK | 0%, 0%, 0%, 100% | 8.1%, 0.0%, 10.8%, 56.5% |
| OKLCH | 0.0 0.0 0.0 | 0.5303 0.0214 137.8 |
Contrast & Accessibility
4.02:1
AA Fail
AA Large Pass
AAA Fail
AAA Large Fail
Text Readability
The quick brown fox jumps over the lazy dog
Text: #666F63 → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #666F63
Color Difference (Delta E)
46.47
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #666F63);
background: linear-gradient(135deg, #000000, #666F63);