#0331df
a dark, electric blue · warm · closest name: blue
RGB
3, 49, 223
HSL
228°, 97%, 44%
CMYK
99, 78, 0, 13
Luminance
0.0754
Every format
| HEX | #0331df |
| RGB | rgb(3, 49, 223) |
| HSL | hsl(228, 97%, 44%) |
| CMYK | cmyk(99%, 78%, 0%, 13%) |
| LAB | lab(33.0 55.6 -88.5) |
| LCH | lch(33.0 104.5 302.1) |
| OKLCH | oklch(0.446 0.258 264.2) |
Copy-ready code
/* CSS */
color: #0331df;
background-color: #0331df;
/* Tailwind (arbitrary) */
class="text-[#0331df] bg-[#0331df]"
/* SCSS */
$brand: #0331df;
/* SwiftUI */
Color(red: 0.012, green: 0.192, blue: 0.875)
/* Android */
Color.parseColor("#0331df")Accessibility — WCAG contrast
Aa
#0331df on white: 8.37:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#0331df on black: 2.51:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.2%
Green19.2%
Blue87.5%
CMYK percentages
Cyan98.7%
Magenta78.0%
Yellow0.0%
Key (black)12.5%
Color previews
#0331df text on a black background
contrast 2.51:1
Card sample
#0331df text on a white background
contrast 8.37:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0331df;
Background color
Panel with #0331df background
background-color: #0331df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0331df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(3, 49, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(3, 49, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0331df; background: linear-gradient(135deg, #0331df, #6803DF);