black
#000000
#378ECB
#378ECB
Color Values
| Format | #000000 | #378ECB |
|---|---|---|
| HEX | #000000 | #378ECB |
| RGB | 0, 0, 0 | 55, 142, 203 |
| HSL | 0.0, 0.0%, 0.0% | 204.7, 58.7%, 50.6% |
| HSV | 0.0, 0.0%, 0.0% | 204.7, 72.9%, 79.6% |
| CMYK | 0%, 0%, 0%, 100% | 72.9%, 30.0%, 0.0%, 20.4% |
| OKLCH | 0.0 0.0 0.0 | 0.6223 0.1235 243.1 |
Contrast & Accessibility
5.89:1
AA Pass
AA Large Pass
AAA Fail
AAA Large Pass
Text Readability
The quick brown fox jumps over the lazy dog
Text: #378ECB → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #378ECB
Color Difference (Delta E)
68.88
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #378ECB);
background: linear-gradient(135deg, #000000, #378ECB);