#51feee
a light, electric cyan · cool · closest name: cyan
RGB
81, 254, 238
HSL
175°, 99%, 66%
CMYK
68, 0, 6, 0
Luminance
0.7881
Every format
| HEX | #51feee |
| RGB | rgb(81, 254, 238) |
| HSL | hsl(175, 99%, 66%) |
| CMYK | cmyk(68%, 0%, 6%, 0%) |
| LAB | lab(91.1 -47.0 -5.2) |
| LCH | lch(91.1 47.3 186.3) |
| OKLCH | oklch(0.906 0.140 186.0) |
Copy-ready code
/* CSS */
color: #51feee;
background-color: #51feee;
/* Tailwind (arbitrary) */
class="text-[#51feee] bg-[#51feee]"
/* SCSS */
$brand: #51feee;
/* SwiftUI */
Color(red: 0.318, green: 0.996, blue: 0.933)
/* Android */
Color.parseColor("#51feee")Accessibility — WCAG contrast
Aa
#51feee on white: 1.25:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51feee on black: 16.76:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green99.6%
Blue93.3%
CMYK percentages
Cyan68.1%
Magenta0.0%
Yellow6.3%
Key (black)0.4%
Color previews
#51feee text on a black background
contrast 16.76:1
Card sample
#51feee text on a white background
contrast 1.25:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51feee;
Background color
Panel with #51feee background
background-color: #51feee;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51feee;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 254, 238, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 254, 238, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51feee; background: linear-gradient(135deg, #51feee, #519BFE);