#51ade1
a balanced, vivid blue · cool · closest name: steelblue
RGB
81, 173, 225
HSL
202°, 71%, 60%
CMYK
64, 23, 0, 12
Luminance
0.3707
Every format
| HEX | #51ade1 |
| RGB | rgb(81, 173, 225) |
| HSL | hsl(202, 71%, 60%) |
| CMYK | cmyk(64%, 23%, 0%, 12%) |
| LAB | lab(67.3 -11.6 -34.3) |
| LCH | lch(67.3 36.2 251.3) |
| OKLCH | oklch(0.713 0.116 236.4) |
Copy-ready code
/* CSS */
color: #51ade1;
background-color: #51ade1;
/* Tailwind (arbitrary) */
class="text-[#51ade1] bg-[#51ade1]"
/* SCSS */
$brand: #51ade1;
/* SwiftUI */
Color(red: 0.318, green: 0.678, blue: 0.882)
/* Android */
Color.parseColor("#51ade1")Accessibility — WCAG contrast
Aa
#51ade1 on white: 2.50:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51ade1 on black: 8.41:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green67.8%
Blue88.2%
CMYK percentages
Cyan64.0%
Magenta23.1%
Yellow0.0%
Key (black)11.8%
Color previews
#51ade1 text on a black background
contrast 8.41:1
Card sample
#51ade1 text on a white background
contrast 2.50:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51ade1;
Background color
Panel with #51ade1 background
background-color: #51ade1;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51ade1;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 173, 225, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 173, 225, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51ade1; background: linear-gradient(135deg, #51ade1, #5551E1);