black
#000000
#637F6F
#637F6F
Color Values
| Format | #000000 | #637F6F |
|---|---|---|
| HEX | #000000 | #637F6F |
| RGB | 0, 0, 0 | 99, 127, 111 |
| HSL | 0.0, 0.0%, 0.0% | 145.7, 12.4%, 44.3% |
| HSV | 0.0, 0.0%, 0.0% | 145.7, 22.0%, 49.8% |
| CMYK | 0%, 0%, 0%, 100% | 22.0%, 0.0%, 12.6%, 50.2% |
| OKLCH | 0.0 0.0 0.0 | 0.5697 0.0405 159.7 |
Contrast & Accessibility
4.8:1
AA Pass
AA Large Pass
AAA Fail
AAA Large Pass
Text Readability
The quick brown fox jumps over the lazy dog
Text: #637F6F → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #637F6F
Color Difference (Delta E)
52.72
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #637F6F);
background: linear-gradient(135deg, #000000, #637F6F);