#370dbb
a dark, electric blue · warm · closest name: navy
RGB
55, 13, 187
HSL
255°, 87%, 39%
CMYK
71, 93, 0, 27
Luminance
0.0469
Every format
| HEX | #370dbb |
| RGB | rgb(55, 13, 187) |
| HSL | hsl(255, 87%, 39%) |
| CMYK | cmyk(71%, 93%, 0%, 27%) |
| LAB | lab(25.8 61.0 -79.4) |
| LCH | lch(25.8 100.2 307.6) |
| OKLCH | oklch(0.389 0.231 277.6) |
Copy-ready code
/* CSS */
color: #370dbb;
background-color: #370dbb;
/* Tailwind (arbitrary) */
class="text-[#370dbb] bg-[#370dbb]"
/* SCSS */
$brand: #370dbb;
/* SwiftUI */
Color(red: 0.216, green: 0.051, blue: 0.733)
/* Android */
Color.parseColor("#370dbb")Accessibility — WCAG contrast
Aa
#370dbb on white: 10.84:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#370dbb on black: 1.94:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red21.6%
Green5.1%
Blue73.3%
CMYK percentages
Cyan70.6%
Magenta93.0%
Yellow0.0%
Key (black)26.7%
Color previews
#370dbb text on a black background
contrast 1.94:1
Card sample
#370dbb text on a white background
contrast 10.84:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #370dbb;
Background color
Panel with #370dbb background
background-color: #370dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #370dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(55, 13, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(55, 13, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #370dbb; background: linear-gradient(135deg, #370dbb, #AB0DBB);