#243fd3
a balanced, vivid blue · warm · closest name: slateblue
RGB
36, 63, 211
HSL
231°, 71%, 48%
CMYK
83, 70, 0, 17
Luminance
0.0863
Every format
| HEX | #243fd3 |
| RGB | rgb(36, 63, 211) |
| HSL | hsl(231, 71%, 48%) |
| CMYK | cmyk(83%, 70%, 0%, 17%) |
| LAB | lab(35.3 44.7 -77.8) |
| LCH | lch(35.3 89.8 299.9) |
| OKLCH | oklch(0.460 0.226 267.3) |
Copy-ready code
/* CSS */
color: #243fd3;
background-color: #243fd3;
/* Tailwind (arbitrary) */
class="text-[#243fd3] bg-[#243fd3]"
/* SCSS */
$brand: #243fd3;
/* SwiftUI */
Color(red: 0.141, green: 0.247, blue: 0.827)
/* Android */
Color.parseColor("#243fd3")Accessibility — WCAG contrast
Aa
#243fd3 on white: 7.70:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#243fd3 on black: 2.73:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red14.1%
Green24.7%
Blue82.7%
CMYK percentages
Cyan82.9%
Magenta70.1%
Yellow0.0%
Key (black)17.3%
Color previews
#243fd3 text on a black background
contrast 2.73:1
Card sample
#243fd3 text on a white background
contrast 7.70:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #243fd3;
Background color
Panel with #243fd3 background
background-color: #243fd3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #243fd3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(36, 63, 211, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(36, 63, 211, 0.45);
Border & gradient
Gradient panel
border: 3px solid #243fd3; background: linear-gradient(135deg, #243fd3, #7D24D3);