#28fddb
a balanced, electric cyan · cool · closest name: aquamarine
RGB
40, 253, 219
HSL
170°, 98%, 58%
CMYK
84, 0, 13, 1
Luminance
0.7582
Every format
| HEX | #28fddb |
| RGB | rgb(40, 253, 219) |
| HSL | hsl(170, 98%, 58%) |
| CMYK | cmyk(84%, 0%, 13%, 1%) |
| LAB | lab(89.8 -55.6 2.6) |
| LCH | lch(89.8 55.6 177.3) |
| OKLCH | oklch(0.892 0.159 177.8) |
Copy-ready code
/* CSS */
color: #28fddb;
background-color: #28fddb;
/* Tailwind (arbitrary) */
class="text-[#28fddb] bg-[#28fddb]"
/* SCSS */
$brand: #28fddb;
/* SwiftUI */
Color(red: 0.157, green: 0.992, blue: 0.859)
/* Android */
Color.parseColor("#28fddb")Accessibility — WCAG contrast
Aa
#28fddb on white: 1.30:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#28fddb on black: 16.16:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green99.2%
Blue85.9%
CMYK percentages
Cyan84.2%
Magenta0.0%
Yellow13.4%
Key (black)0.8%
Color previews
#28fddb text on a black background
contrast 16.16:1
Card sample
#28fddb text on a white background
contrast 1.30:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #28fddb;
Background color
Panel with #28fddb background
background-color: #28fddb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #28fddb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 253, 219, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 253, 219, 0.45);
Border & gradient
Gradient panel
border: 3px solid #28fddb; background: linear-gradient(135deg, #28fddb, #2891FD);