#255eb3
a dark, vivid blue · cool · closest name: royalblue
RGB
37, 94, 179
HSL
216°, 66%, 42%
CMYK
79, 48, 0, 30
Luminance
0.1165
Every format
| HEX | #255eb3 |
| RGB | rgb(37, 94, 179) |
| HSL | hsl(216, 66%, 42%) |
| CMYK | cmyk(79%, 48%, 0%, 30%) |
| LAB | lab(40.7 12.7 -50.4) |
| LCH | lch(40.7 52.0 284.2) |
| OKLCH | oklch(0.492 0.148 258.6) |
Copy-ready code
/* CSS */
color: #255eb3;
background-color: #255eb3;
/* Tailwind (arbitrary) */
class="text-[#255eb3] bg-[#255eb3]"
/* SCSS */
$brand: #255eb3;
/* SwiftUI */
Color(red: 0.145, green: 0.369, blue: 0.702)
/* Android */
Color.parseColor("#255eb3")Accessibility — WCAG contrast
Aa
#255eb3 on white: 6.31:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#255eb3 on black: 3.33:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red14.5%
Green36.9%
Blue70.2%
CMYK percentages
Cyan79.3%
Magenta47.5%
Yellow0.0%
Key (black)29.8%
Color previews
#255eb3 text on a black background
contrast 3.33:1
Card sample
#255eb3 text on a white background
contrast 6.31:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #255eb3;
Background color
Panel with #255eb3 background
background-color: #255eb3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #255eb3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(37, 94, 179, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(37, 94, 179, 0.45);
Border & gradient
Gradient panel
border: 3px solid #255eb3; background: linear-gradient(135deg, #255eb3, #4B25B3);