#51ddf2
a balanced, electric cyan · cool · closest name: skyblue
RGB
81, 221, 242
HSL
188°, 86%, 63%
CMYK
67, 9, 0, 5
Luminance
0.5987
Every format
| HEX | #51ddf2 |
| RGB | rgb(81, 221, 242) |
| HSL | hsl(188, 86%, 63%) |
| CMYK | cmyk(67%, 9%, 0%, 5%) |
| LAB | lab(81.8 -30.9 -21.3) |
| LCH | lch(81.8 37.5 214.6) |
| OKLCH | oklch(0.831 0.121 209.2) |
Copy-ready code
/* CSS */
color: #51ddf2;
background-color: #51ddf2;
/* Tailwind (arbitrary) */
class="text-[#51ddf2] bg-[#51ddf2]"
/* SCSS */
$brand: #51ddf2;
/* SwiftUI */
Color(red: 0.318, green: 0.867, blue: 0.949)
/* Android */
Color.parseColor("#51ddf2")Accessibility — WCAG contrast
Aa
#51ddf2 on white: 1.62:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51ddf2 on black: 12.97:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green86.7%
Blue94.9%
CMYK percentages
Cyan66.5%
Magenta8.7%
Yellow0.0%
Key (black)5.1%
Color previews
#51ddf2 text on a black background
contrast 12.97:1
Card sample
#51ddf2 text on a white background
contrast 1.62:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51ddf2;
Background color
Panel with #51ddf2 background
background-color: #51ddf2;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51ddf2;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 221, 242, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 221, 242, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51ddf2; background: linear-gradient(135deg, #51ddf2, #5172F2);