black
#000000
#637C7D
#637C7D
Color Values
| Format | #000000 | #637C7D |
|---|---|---|
| HEX | #000000 | #637C7D |
| RGB | 0, 0, 0 | 99, 124, 125 |
| HSL | 0.0, 0.0%, 0.0% | 182.3, 11.6%, 43.9% |
| HSV | 0.0, 0.0%, 0.0% | 182.3, 20.8%, 49.0% |
| CMYK | 0%, 0%, 0%, 100% | 20.8%, 0.8%, 0.0%, 51.0% |
| OKLCH | 0.0 0.0 0.0 | 0.567 0.029 199.4 |
Contrast & Accessibility
4.71:1
AA Pass
AA Large Pass
AAA Fail
AAA Large Pass
Text Readability
The quick brown fox jumps over the lazy dog
Text: #637C7D → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #637C7D
Color Difference (Delta E)
51.03
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #637C7D);
background: linear-gradient(135deg, #000000, #637C7D);