#288fd2
a balanced, vivid blue · cool · closest name: steelblue
RGB
40, 143, 210
HSL
204°, 68%, 49%
CMYK
81, 32, 0, 18
Luminance
0.2475
Every format
| HEX | #288fd2 |
| RGB | rgb(40, 143, 210) |
| HSL | hsl(204, 68%, 49%) |
| CMYK | cmyk(81%, 32%, 0%, 18%) |
| LAB | lab(56.8 -5.4 -42.5) |
| LCH | lch(56.8 42.8 262.7) |
| OKLCH | oklch(0.625 0.136 242.9) |
Copy-ready code
/* CSS */
color: #288fd2;
background-color: #288fd2;
/* Tailwind (arbitrary) */
class="text-[#288fd2] bg-[#288fd2]"
/* SCSS */
$brand: #288fd2;
/* SwiftUI */
Color(red: 0.157, green: 0.561, blue: 0.824)
/* Android */
Color.parseColor("#288fd2")Accessibility — WCAG contrast
Aa
#288fd2 on white: 3.53:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#288fd2 on black: 5.95:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green56.1%
Blue82.4%
CMYK percentages
Cyan81.0%
Magenta31.9%
Yellow0.0%
Key (black)17.6%
Color previews
#288fd2 text on a black background
contrast 5.95:1
Card sample
#288fd2 text on a white background
contrast 3.53:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #288fd2;
Background color
Panel with #288fd2 background
background-color: #288fd2;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #288fd2;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 143, 210, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 143, 210, 0.45);
Border & gradient
Gradient panel
border: 3px solid #288fd2; background: linear-gradient(135deg, #288fd2, #3228D2);