#28fcdf
a balanced, electric cyan · cool · closest name: aquamarine
RGB
40, 252, 223
HSL
172°, 97%, 57%
CMYK
84, 0, 12, 1
Luminance
0.7540
Every format
| HEX | #28fcdf |
| RGB | rgb(40, 252, 223) |
| HSL | hsl(172, 97%, 57%) |
| CMYK | cmyk(84%, 0%, 12%, 1%) |
| LAB | lab(89.6 -54.2 0.2) |
| LCH | lch(89.6 54.2 179.7) |
| OKLCH | oklch(0.891 0.156 180.1) |
Copy-ready code
/* CSS */
color: #28fcdf;
background-color: #28fcdf;
/* Tailwind (arbitrary) */
class="text-[#28fcdf] bg-[#28fcdf]"
/* SCSS */
$brand: #28fcdf;
/* SwiftUI */
Color(red: 0.157, green: 0.988, blue: 0.875)
/* Android */
Color.parseColor("#28fcdf")Accessibility — WCAG contrast
Aa
#28fcdf on white: 1.31:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#28fcdf on black: 16.08:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green98.8%
Blue87.5%
CMYK percentages
Cyan84.1%
Magenta0.0%
Yellow11.5%
Key (black)1.2%
Color previews
#28fcdf text on a black background
contrast 16.08:1
Card sample
#28fcdf text on a white background
contrast 1.31:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #28fcdf;
Background color
Panel with #28fcdf background
background-color: #28fcdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #28fcdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 252, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 252, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #28fcdf; background: linear-gradient(135deg, #28fcdf, #288CFC);