#51fdf3
a light, electric cyan · cool · closest name: cyan
RGB
81, 253, 243
HSL
177°, 98%, 66%
CMYK
68, 0, 4, 1
Luminance
0.7847
Every format
| HEX | #51fdf3 |
| RGB | rgb(81, 253, 243) |
| HSL | hsl(177, 98%, 66%) |
| CMYK | cmyk(68%, 0%, 4%, 1%) |
| LAB | lab(91.0 -45.3 -8.0) |
| LCH | lch(91.0 46.0 190.0) |
| OKLCH | oklch(0.906 0.138 189.3) |
Copy-ready code
/* CSS */
color: #51fdf3;
background-color: #51fdf3;
/* Tailwind (arbitrary) */
class="text-[#51fdf3] bg-[#51fdf3]"
/* SCSS */
$brand: #51fdf3;
/* SwiftUI */
Color(red: 0.318, green: 0.992, blue: 0.953)
/* Android */
Color.parseColor("#51fdf3")Accessibility — WCAG contrast
Aa
#51fdf3 on white: 1.26:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51fdf3 on black: 16.69:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green99.2%
Blue95.3%
CMYK percentages
Cyan68.0%
Magenta0.0%
Yellow4.0%
Key (black)0.8%
Color previews
#51fdf3 text on a black background
contrast 16.69:1
Card sample
#51fdf3 text on a white background
contrast 1.26:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51fdf3;
Background color
Panel with #51fdf3 background
background-color: #51fdf3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51fdf3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 253, 243, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 253, 243, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51fdf3; background: linear-gradient(135deg, #51fdf3, #5194FD);