black
#000000
#66717B
#66717B
Color Values
| Format | #000000 | #66717B |
|---|---|---|
| HEX | #000000 | #66717B |
| RGB | 0, 0, 0 | 102, 113, 123 |
| HSL | 0.0, 0.0%, 0.0% | 208.6, 9.3%, 44.1% |
| HSV | 0.0, 0.0%, 0.0% | 208.6, 17.1%, 48.2% |
| CMYK | 0%, 0%, 0%, 100% | 17.1%, 8.1%, 0.0%, 51.8% |
| OKLCH | 0.0 0.0 0.0 | 0.5429 0.0205 245.6 |
Contrast & Accessibility
4.21:1
AA Fail
AA Large Pass
AAA Fail
AAA Large Fail
Text Readability
The quick brown fox jumps over the lazy dog
Text: #66717B → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #66717B
Color Difference (Delta E)
47.6
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #66717B);
background: linear-gradient(135deg, #000000, #66717B);