black
#000000
#66737C
#66737C
Color Values
| Format | #000000 | #66737C |
|---|---|---|
| HEX | #000000 | #66737C |
| RGB | 0, 0, 0 | 102, 115, 124 |
| HSL | 0.0, 0.0%, 0.0% | 204.5, 9.7%, 44.3% |
| HSV | 0.0, 0.0%, 0.0% | 204.5, 17.7%, 48.6% |
| CMYK | 0%, 0%, 0%, 100% | 17.7%, 7.3%, 0.0%, 51.4% |
| OKLCH | 0.0 0.0 0.0 | 0.5478 0.021 238.1 |
Contrast & Accessibility
4.31:1
AA Fail
AA Large Pass
AAA Fail
AAA Large Fail
Text Readability
The quick brown fox jumps over the lazy dog
Text: #66737C → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #66737C
Color Difference (Delta E)
48.21
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #66737C);
background: linear-gradient(135deg, #000000, #66737C);