black
#000000
#637B8C
#637B8C
Color Values
| Format | #000000 | #637B8C |
|---|---|---|
| HEX | #000000 | #637B8C |
| RGB | 0, 0, 0 | 99, 123, 140 |
| HSL | 0.0, 0.0%, 0.0% | 204.9, 17.2%, 46.9% |
| HSV | 0.0, 0.0%, 0.0% | 204.9, 29.3%, 54.9% |
| CMYK | 0%, 0%, 0%, 100% | 29.3%, 12.1%, 0.0%, 45.1% |
| OKLCH | 0.0 0.0 0.0 | 0.5701 0.0384 239.2 |
Contrast & Accessibility
4.74:1
AA Pass
AA Large Pass
AAA Fail
AAA Large Pass
Text Readability
The quick brown fox jumps over the lazy dog
Text: #637B8C → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #637B8C
Color Difference (Delta E)
51.97
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #637B8C);
background: linear-gradient(135deg, #000000, #637B8C);