black
#000000
red
#FF0000
Color Values
| Format | #000000 | #FF0000 |
|---|---|---|
| HEX | #000000 | #FF0000 |
| RGB | 0, 0, 0 | 255, 0, 0 |
| HSL | 0.0, 0.0%, 0.0% | 0.0, 100.0%, 50.0% |
| HSV | 0.0, 0.0%, 0.0% | 0.0, 100.0%, 100.0% |
| CMYK | 0%, 0%, 0%, 100% | 0.0%, 100.0%, 100.0%, 0.0% |
| OKLCH | 0.0 0.0 0.0 | 0.628 0.2577 29.2 |
Contrast & Accessibility
5.25:1
AA Pass
AA Large Pass
AAA Fail
AAA Large Pass
Text Readability
The quick brown fox jumps over the lazy dog
Text: #FF0000 → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #FF0000
Color Difference (Delta E)
117.32
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #FF0000);
background: linear-gradient(135deg, #000000, #FF0000);