#51fdf0
a light, electric cyan · cool · closest name: cyan
RGB
81, 253, 240
HSL
176°, 98%, 66%
CMYK
68, 0, 5, 1
Luminance
0.7829
Every format
| HEX | #51fdf0 |
| RGB | rgb(81, 253, 240) |
| HSL | hsl(176, 98%, 66%) |
| CMYK | cmyk(68%, 0%, 5%, 1%) |
| LAB | lab(90.9 -46.1 -6.6) |
| LCH | lch(90.9 46.5 188.1) |
| OKLCH | oklch(0.905 0.139 187.7) |
Copy-ready code
/* CSS */
color: #51fdf0;
background-color: #51fdf0;
/* Tailwind (arbitrary) */
class="text-[#51fdf0] bg-[#51fdf0]"
/* SCSS */
$brand: #51fdf0;
/* SwiftUI */
Color(red: 0.318, green: 0.992, blue: 0.941)
/* Android */
Color.parseColor("#51fdf0")Accessibility — WCAG contrast
Aa
#51fdf0 on white: 1.26:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51fdf0 on black: 16.66:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green99.2%
Blue94.1%
CMYK percentages
Cyan68.0%
Magenta0.0%
Yellow5.1%
Key (black)0.8%
Color previews
#51fdf0 text on a black background
contrast 16.66:1
Card sample
#51fdf0 text on a white background
contrast 1.26:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51fdf0;
Background color
Panel with #51fdf0 background
background-color: #51fdf0;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51fdf0;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 253, 240, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 253, 240, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51fdf0; background: linear-gradient(135deg, #51fdf0, #5197FD);