#231df4
a balanced, electric blue · warm · closest name: blue
RGB
35, 29, 244
HSL
242°, 91%, 54%
CMYK
86, 88, 0, 4
Luminance
0.0777
Every format
| HEX | #231df4 |
| RGB | rgb(35, 29, 244) |
| HSL | hsl(242, 91%, 54%) |
| CMYK | cmyk(86%, 88%, 0%, 4%) |
| LAB | lab(33.5 70.9 -99.7) |
| LCH | lch(33.5 122.3 305.4) |
| OKLCH | oklch(0.458 0.288 267.8) |
Copy-ready code
/* CSS */
color: #231df4;
background-color: #231df4;
/* Tailwind (arbitrary) */
class="text-[#231df4] bg-[#231df4]"
/* SCSS */
$brand: #231df4;
/* SwiftUI */
Color(red: 0.137, green: 0.114, blue: 0.957)
/* Android */
Color.parseColor("#231df4")Accessibility — WCAG contrast
Aa
#231df4 on white: 8.22:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#231df4 on black: 2.55:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red13.7%
Green11.4%
Blue95.7%
CMYK percentages
Cyan85.7%
Magenta88.1%
Yellow0.0%
Key (black)4.3%
Color previews
#231df4 text on a black background
contrast 2.55:1
Card sample
#231df4 text on a white background
contrast 8.22:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #231df4;
Background color
Panel with #231df4 background
background-color: #231df4;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #231df4;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(35, 29, 244, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(35, 29, 244, 0.45);
Border & gradient
Gradient panel
border: 3px solid #231df4; background: linear-gradient(135deg, #231df4, #B21DF4);