black
#000000
#21EF21
#21EF21
Color Values
| Format | #000000 | #21EF21 |
|---|---|---|
| HEX | #000000 | #21EF21 |
| RGB | 0, 0, 0 | 33, 239, 33 |
| HSL | 0.0, 0.0%, 0.0% | 120.0, 86.6%, 53.3% |
| HSV | 0.0, 0.0%, 0.0% | 120.0, 86.2%, 93.7% |
| CMYK | 0%, 0%, 0%, 100% | 86.2%, 0.0%, 86.2%, 6.3% |
| OKLCH | 0.0 0.0 0.0 | 0.8276 0.2723 142.6 |
Contrast & Accessibility
13.43:1
AA Pass
AA Large Pass
AAA Pass
AAA Large Pass
Text Readability
The quick brown fox jumps over the lazy dog
Text: #21EF21 → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #21EF21
Color Difference (Delta E)
137.62
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #21EF21);
background: linear-gradient(135deg, #000000, #21EF21);