black
#000000
#378AB3
#378AB3
Color Values
| Format | #000000 | #378AB3 |
|---|---|---|
| HEX | #000000 | #378AB3 |
| RGB | 0, 0, 0 | 55, 138, 179 |
| HSL | 0.0, 0.0%, 0.0% | 199.8, 53.0%, 45.9% |
| HSV | 0.0, 0.0%, 0.0% | 199.8, 69.3%, 70.2% |
| CMYK | 0%, 0%, 0%, 100% | 69.3%, 22.9%, 0.0%, 29.8% |
| OKLCH | 0.0 0.0 0.0 | 0.6008 0.1006 233.6 |
Contrast & Accessibility
5.45:1
AA Pass
AA Large Pass
AAA Fail
AAA Large Pass
Text Readability
The quick brown fox jumps over the lazy dog
Text: #378AB3 → Background: #000000
The quick brown fox jumps over the lazy dog
Text: #000000 → Background: #378AB3
Color Difference (Delta E)
62.55
Very Different
0 — Identical
5 — Similar
25 — Noticeable
100 — Very Different
Gradient
Color Mixing
CSS Gradient Code
background: linear-gradient(to right, #000000, #378AB3);
background: linear-gradient(135deg, #000000, #378AB3);