#331dbb
a dark, vivid blue · warm · closest name: navy
RGB
51, 29, 187
HSL
248°, 73%, 42%
CMYK
73, 85, 0, 27
Luminance
0.0517
Every format
| HEX | #331dbb |
| RGB | rgb(51, 29, 187) |
| HSL | hsl(248, 73%, 42%) |
| CMYK | cmyk(73%, 85%, 0%, 27%) |
| LAB | lab(27.2 55.7 -77.1) |
| LCH | lch(27.2 95.1 305.8) |
| OKLCH | oklch(0.398 0.224 275.3) |
Copy-ready code
/* CSS */
color: #331dbb;
background-color: #331dbb;
/* Tailwind (arbitrary) */
class="text-[#331dbb] bg-[#331dbb]"
/* SCSS */
$brand: #331dbb;
/* SwiftUI */
Color(red: 0.200, green: 0.114, blue: 0.733)
/* Android */
Color.parseColor("#331dbb")Accessibility — WCAG contrast
Aa
#331dbb on white: 10.32:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#331dbb on black: 2.03:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green11.4%
Blue73.3%
CMYK percentages
Cyan72.7%
Magenta84.5%
Yellow0.0%
Key (black)26.7%
Color previews
#331dbb text on a black background
contrast 2.03:1
Card sample
#331dbb text on a white background
contrast 10.32:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #331dbb;
Background color
Panel with #331dbb background
background-color: #331dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #331dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 29, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 29, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #331dbb; background: linear-gradient(135deg, #331dbb, #9D1DBB);