black
#000000
#3F636B
#3F636B
Color Values
| Format | #000000 | #3F636B |
|---|---|---|
| HEX | #000000 | #3F636B |
| RGB | 0, 0, 0 | 63, 99, 107 |
| HSL | 0.0, 0.0%, 0.0% | 190.9, 25.9%, 33.3% |
| HSV | 0.0, 0.0%, 0.0% | 190.9, 41.1%, 42.0% |
| CMYK | 0%, 0%, 0%, 100% | 41.1%, 7.5%, 0.0%, 58.0% |
| OKLCH | 0.0 0.0 0.0 | 0.4756 0.0431 213.2 |
Contrast & Accessibility
3.21:1
AA Fail
AA Large Pass
AAA Fail
AAA Large Fail
Text Readability
The quick brown fox jumps over the lazy dog
Text: #3F636B → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #3F636B
Color Difference (Delta E)
41.93
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #3F636B);
background: linear-gradient(135deg, #000000, #3F636B);