black
#000000
#637B8F
#637B8F
Color Values
| Format | #000000 | #637B8F |
|---|---|---|
| HEX | #000000 | #637B8F |
| RGB | 0, 0, 0 | 99, 123, 143 |
| HSL | 0.0, 0.0%, 0.0% | 207.3, 18.2%, 47.5% |
| HSV | 0.0, 0.0%, 0.0% | 207.3, 30.8%, 56.1% |
| CMYK | 0%, 0%, 0%, 100% | 30.8%, 14.0%, 0.0%, 43.9% |
| OKLCH | 0.0 0.0 0.0 | 0.5713 0.0418 243.7 |
Contrast & Accessibility
4.76:1
AA Pass
AA Large Pass
AAA Fail
AAA Large Pass
Text Readability
The quick brown fox jumps over the lazy dog
Text: #637B8F → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #637B8F
Color Difference (Delta E)
52.4
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #637B8F);
background: linear-gradient(135deg, #000000, #637B8F);