#51ffdf
a light, electric cyan · cool · closest name: aquamarine
RGB
81, 255, 223
HSL
169°, 100%, 66%
CMYK
68, 0, 13, 0
Luminance
0.7860
Every format
| HEX | #51ffdf |
| RGB | rgb(81, 255, 223) |
| HSL | hsl(169, 100%, 66%) |
| CMYK | cmyk(68%, 0%, 13%, 0%) |
| LAB | lab(91.0 -51.3 2.5) |
| LCH | lch(91.0 51.3 177.3) |
| OKLCH | oklch(0.904 0.147 177.8) |
Copy-ready code
/* CSS */
color: #51ffdf;
background-color: #51ffdf;
/* Tailwind (arbitrary) */
class="text-[#51ffdf] bg-[#51ffdf]"
/* SCSS */
$brand: #51ffdf;
/* SwiftUI */
Color(red: 0.318, green: 1.000, blue: 0.875)
/* Android */
Color.parseColor("#51ffdf")Accessibility — WCAG contrast
Aa
#51ffdf on white: 1.26:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51ffdf on black: 16.72:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green100.0%
Blue87.5%
CMYK percentages
Cyan68.2%
Magenta0.0%
Yellow12.5%
Key (black)0.0%
Color previews
#51ffdf text on a black background
contrast 16.72:1
Card sample
#51ffdf text on a white background
contrast 1.26:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51ffdf;
Background color
Panel with #51ffdf background
background-color: #51ffdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51ffdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 255, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 255, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51ffdf; background: linear-gradient(135deg, #51ffdf, #51ABFF);