#51abdf
a balanced, vivid blue · cool · closest name: steelblue
RGB
81, 171, 223
HSL
202°, 69%, 60%
CMYK
64, 23, 0, 13
Luminance
0.3620
Every format
| HEX | #51abdf |
| RGB | rgb(81, 171, 223) |
| HSL | hsl(202, 69%, 60%) |
| CMYK | cmyk(64%, 23%, 0%, 13%) |
| LAB | lab(66.7 -11.2 -34.2) |
| LCH | lch(66.7 36.0 251.9) |
| OKLCH | oklch(0.708 0.115 236.9) |
Copy-ready code
/* CSS */
color: #51abdf;
background-color: #51abdf;
/* Tailwind (arbitrary) */
class="text-[#51abdf] bg-[#51abdf]"
/* SCSS */
$brand: #51abdf;
/* SwiftUI */
Color(red: 0.318, green: 0.671, blue: 0.875)
/* Android */
Color.parseColor("#51abdf")Accessibility — WCAG contrast
Aa
#51abdf on white: 2.55:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51abdf on black: 8.24:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green67.1%
Blue87.5%
CMYK percentages
Cyan63.7%
Magenta23.3%
Yellow0.0%
Key (black)12.5%
Color previews
#51abdf text on a black background
contrast 8.24:1
Card sample
#51abdf text on a white background
contrast 2.55:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51abdf;
Background color
Panel with #51abdf background
background-color: #51abdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51abdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 171, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 171, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51abdf; background: linear-gradient(135deg, #51abdf, #5651DF);