black
#000000
#646B77
#646B77
Color Values
| Format | #000000 | #646B77 |
|---|---|---|
| HEX | #000000 | #646B77 |
| RGB | 0, 0, 0 | 100, 107, 119 |
| HSL | 0.0, 0.0%, 0.0% | 217.9, 8.7%, 42.9% |
| HSV | 0.0, 0.0%, 0.0% | 217.9, 16.0%, 46.7% |
| CMYK | 0%, 0%, 0%, 100% | 16.0%, 10.1%, 0.0%, 53.3% |
| OKLCH | 0.0 0.0 0.0 | 0.526 0.0207 261.3 |
Contrast & Accessibility
3.91:1
AA Fail
AA Large Pass
AAA Fail
AAA Large Fail
Text Readability
The quick brown fox jumps over the lazy dog
Text: #646B77 → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #646B77
Color Difference (Delta E)
45.65
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #646B77);
background: linear-gradient(135deg, #000000, #646B77);