#255df4
a balanced, electric blue · cool · closest name: royalblue
RGB
37, 93, 244
HSL
224°, 90%, 55%
CMYK
85, 62, 0, 4
Luminance
0.1475
Every format
| HEX | #255df4 |
| RGB | rgb(37, 93, 244) |
| HSL | hsl(224, 90%, 55%) |
| CMYK | cmyk(85%, 62%, 0%, 4%) |
| LAB | lab(45.3 38.1 -80.1) |
| LCH | lch(45.3 88.7 295.4) |
| OKLCH | oklch(0.543 0.233 264.2) |
Copy-ready code
/* CSS */
color: #255df4;
background-color: #255df4;
/* Tailwind (arbitrary) */
class="text-[#255df4] bg-[#255df4]"
/* SCSS */
$brand: #255df4;
/* SwiftUI */
Color(red: 0.145, green: 0.365, blue: 0.957)
/* Android */
Color.parseColor("#255df4")Accessibility — WCAG contrast
Aa
#255df4 on white: 5.32:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#255df4 on black: 3.95:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red14.5%
Green36.5%
Blue95.7%
CMYK percentages
Cyan84.8%
Magenta61.9%
Yellow0.0%
Key (black)4.3%
Color previews
#255df4 text on a black background
contrast 3.95:1
Card sample
#255df4 text on a white background
contrast 5.32:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #255df4;
Background color
Panel with #255df4 background
background-color: #255df4;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #255df4;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(37, 93, 244, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(37, 93, 244, 0.45);
Border & gradient
Gradient panel
border: 3px solid #255df4; background: linear-gradient(135deg, #255df4, #7725F4);