#183bff
a balanced, electric blue · warm · closest name: blue
RGB
24, 59, 255
HSL
231°, 100%, 55%
CMYK
91, 77, 0, 0
Luminance
0.1054
Every format
| HEX | #183bff |
| RGB | rgb(24, 59, 255) |
| HSL | hsl(231, 100%, 55%) |
| CMYK | cmyk(91%, 77%, 0%, 0%) |
| LAB | lab(38.8 61.1 -97.0) |
| LCH | lch(38.8 114.7 302.2) |
| OKLCH | oklch(0.498 0.282 265.6) |
Copy-ready code
/* CSS */
color: #183bff;
background-color: #183bff;
/* Tailwind (arbitrary) */
class="text-[#183bff] bg-[#183bff]"
/* SCSS */
$brand: #183bff;
/* SwiftUI */
Color(red: 0.094, green: 0.231, blue: 1.000)
/* Android */
Color.parseColor("#183bff")Accessibility — WCAG contrast
Aa
#183bff on white: 6.76:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#183bff on black: 3.11:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.4%
Green23.1%
Blue100.0%
CMYK percentages
Cyan90.6%
Magenta76.9%
Yellow0.0%
Key (black)0.0%
Color previews
#183bff text on a black background
contrast 3.11:1
Card sample
#183bff text on a white background
contrast 6.76:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #183bff;
Background color
Panel with #183bff background
background-color: #183bff;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #183bff;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(24, 59, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(24, 59, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #183bff; background: linear-gradient(135deg, #183bff, #8F18FF);