#243b8f
a dark, vivid blue · warm · closest name: midnightblue
RGB
36, 59, 143
HSL
227°, 60%, 35%
CMYK
75, 59, 0, 44
Luminance
0.0549
Every format
| HEX | #243b8f |
| RGB | rgb(36, 59, 143) |
| HSL | hsl(227, 60%, 35%) |
| CMYK | cmyk(75%, 59%, 0%, 44%) |
| LAB | lab(28.1 22.1 -49.1) |
| LCH | lch(28.1 53.9 294.2) |
| OKLCH | oklch(0.388 0.142 267.6) |
Copy-ready code
/* CSS */
color: #243b8f;
background-color: #243b8f;
/* Tailwind (arbitrary) */
class="text-[#243b8f] bg-[#243b8f]"
/* SCSS */
$brand: #243b8f;
/* SwiftUI */
Color(red: 0.141, green: 0.231, blue: 0.561)
/* Android */
Color.parseColor("#243b8f")Accessibility — WCAG contrast
Aa
#243b8f on white: 10.01:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#243b8f on black: 2.10:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red14.1%
Green23.1%
Blue56.1%
CMYK percentages
Cyan74.8%
Magenta58.7%
Yellow0.0%
Key (black)43.9%
Color previews
#243b8f text on a black background
contrast 2.10:1
Card sample
#243b8f text on a white background
contrast 10.01:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #243b8f;
Background color
Panel with #243b8f background
background-color: #243b8f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #243b8f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(36, 59, 143, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(36, 59, 143, 0.45);
Border & gradient
Gradient panel
border: 3px solid #243b8f; background: linear-gradient(135deg, #243b8f, #54248F);