#51ade6
a balanced, vivid blue · cool · closest name: steelblue
RGB
81, 173, 230
HSL
203°, 75%, 61%
CMYK
65, 25, 0, 10
Luminance
0.3735
Every format
| HEX | #51ade6 |
| RGB | rgb(81, 173, 230) |
| HSL | hsl(203, 75%, 61%) |
| CMYK | cmyk(65%, 25%, 0%, 10%) |
| LAB | lab(67.5 -10.0 -36.7) |
| LCH | lch(67.5 38.0 254.7) |
| OKLCH | oklch(0.716 0.120 238.8) |
Copy-ready code
/* CSS */
color: #51ade6;
background-color: #51ade6;
/* Tailwind (arbitrary) */
class="text-[#51ade6] bg-[#51ade6]"
/* SCSS */
$brand: #51ade6;
/* SwiftUI */
Color(red: 0.318, green: 0.678, blue: 0.902)
/* Android */
Color.parseColor("#51ade6")Accessibility — WCAG contrast
Aa
#51ade6 on white: 2.48:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51ade6 on black: 8.47:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green67.8%
Blue90.2%
CMYK percentages
Cyan64.8%
Magenta24.8%
Yellow0.0%
Key (black)9.8%
Color previews
#51ade6 text on a black background
contrast 8.47:1
Card sample
#51ade6 text on a white background
contrast 2.48:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51ade6;
Background color
Panel with #51ade6 background
background-color: #51ade6;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51ade6;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 173, 230, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 173, 230, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51ade6; background: linear-gradient(135deg, #51ade6, #5951E6);