#51f8ff
a light, electric cyan · cool · closest name: cyan
RGB
81, 248, 255
HSL
182°, 100%, 66%
CMYK
68, 3, 0, 0
Luminance
0.7610
Every format
| HEX | #51f8ff |
| RGB | rgb(81, 248, 255) |
| HSL | hsl(182, 100%, 66%) |
| CMYK | cmyk(68%, 3%, 0%, 0%) |
| LAB | lab(89.9 -39.8 -15.9) |
| LCH | lch(89.9 42.9 201.7) |
| OKLCH | oklch(0.898 0.134 199.1) |
Copy-ready code
/* CSS */
color: #51f8ff;
background-color: #51f8ff;
/* Tailwind (arbitrary) */
class="text-[#51f8ff] bg-[#51f8ff]"
/* SCSS */
$brand: #51f8ff;
/* SwiftUI */
Color(red: 0.318, green: 0.973, blue: 1.000)
/* Android */
Color.parseColor("#51f8ff")Accessibility — WCAG contrast
Aa
#51f8ff on white: 1.29:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51f8ff on black: 16.22:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green97.3%
Blue100.0%
CMYK percentages
Cyan68.2%
Magenta2.7%
Yellow0.0%
Key (black)0.0%
Color previews
#51f8ff text on a black background
contrast 16.22:1
Card sample
#51f8ff text on a white background
contrast 1.29:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51f8ff;
Background color
Panel with #51f8ff background
background-color: #51f8ff;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51f8ff;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 248, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 248, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51f8ff; background: linear-gradient(135deg, #51f8ff, #5184FF);