black
#000000
#66637C
#66637C
Color Values
| Format | #000000 | #66637C |
|---|---|---|
| HEX | #000000 | #66637C |
| RGB | 0, 0, 0 | 102, 99, 124 |
| HSL | 0.0, 0.0%, 0.0% | 247.2, 11.2%, 43.7% |
| HSV | 0.0, 0.0%, 0.0% | 247.2, 20.2%, 48.6% |
| CMYK | 0%, 0%, 0%, 100% | 17.7%, 20.2%, 0.0%, 51.4% |
| OKLCH | 0.0 0.0 0.0 | 0.5118 0.0393 290.4 |
Contrast & Accessibility
3.64:1
AA Fail
AA Large Pass
AAA Fail
AAA Large Fail
Text Readability
The quick brown fox jumps over the lazy dog
Text: #66637C → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #66637C
Color Difference (Delta E)
45.65
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #66637C);
background: linear-gradient(135deg, #000000, #66637C);