#331fdb
a balanced, electric blue · warm · closest name: blue
RGB
51, 31, 219
HSL
246°, 75%, 49%
CMYK
77, 86, 0, 14
Luminance
0.0680
Every format
| HEX | #331fdb |
| RGB | rgb(51, 31, 219) |
| HSL | hsl(246, 75%, 49%) |
| CMYK | cmyk(77%, 86%, 0%, 14%) |
| LAB | lab(31.3 64.0 -89.0) |
| LCH | lch(31.3 109.6 305.7) |
| OKLCH | oklch(0.437 0.257 272.5) |
Copy-ready code
/* CSS */
color: #331fdb;
background-color: #331fdb;
/* Tailwind (arbitrary) */
class="text-[#331fdb] bg-[#331fdb]"
/* SCSS */
$brand: #331fdb;
/* SwiftUI */
Color(red: 0.200, green: 0.122, blue: 0.859)
/* Android */
Color.parseColor("#331fdb")Accessibility — WCAG contrast
Aa
#331fdb on white: 8.90:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#331fdb on black: 2.36:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green12.2%
Blue85.9%
CMYK percentages
Cyan76.7%
Magenta85.8%
Yellow0.0%
Key (black)14.1%
Color previews
#331fdb text on a black background
contrast 2.36:1
Card sample
#331fdb text on a white background
contrast 8.90:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #331fdb;
Background color
Panel with #331fdb background
background-color: #331fdb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #331fdb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 31, 219, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 31, 219, 0.45);
Border & gradient
Gradient panel
border: 3px solid #331fdb; background: linear-gradient(135deg, #331fdb, #B01FDB);