black
#000000
#21303F
#21303F
Color Values
| Format | #000000 | #21303F |
|---|---|---|
| HEX | #000000 | #21303F |
| RGB | 0, 0, 0 | 33, 48, 63 |
| HSL | 0.0, 0.0%, 0.0% | 210.0, 31.2%, 18.8% |
| HSV | 0.0, 0.0%, 0.0% | 210.0, 47.6%, 24.7% |
| CMYK | 0%, 0%, 0%, 100% | 47.6%, 23.8%, 0.0%, 75.3% |
| OKLCH | 0.0 0.0 0.0 | 0.3028 0.0339 249.0 |
Contrast & Accessibility
1.56:1
AA Fail
AA Large Fail
AAA Fail
AAA Large Fail
Text Readability
The quick brown fox jumps over the lazy dog
Text: #21303F → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #21303F
Color Difference (Delta E)
22.4
Noticeable
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #21303F);
background: linear-gradient(135deg, #000000, #21303F);