#28dfab
a balanced, vivid cyan · cool · closest name: aquamarine
RGB
40, 223, 171
HSL
163°, 74%, 52%
CMYK
82, 0, 23, 13
Luminance
0.5617
Every format
| HEX | #28dfab |
| RGB | rgb(40, 223, 171) |
| HSL | hsl(163, 74%, 52%) |
| CMYK | cmyk(82%, 0%, 23%, 13%) |
| LAB | lab(79.7 -55.5 13.3) |
| LCH | lch(79.7 57.0 166.5) |
| OKLCH | oklch(0.806 0.157 167.5) |
Copy-ready code
/* CSS */
color: #28dfab;
background-color: #28dfab;
/* Tailwind (arbitrary) */
class="text-[#28dfab] bg-[#28dfab]"
/* SCSS */
$brand: #28dfab;
/* SwiftUI */
Color(red: 0.157, green: 0.875, blue: 0.671)
/* Android */
Color.parseColor("#28dfab")Accessibility — WCAG contrast
Aa
#28dfab on white: 1.72:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#28dfab on black: 12.23:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green87.5%
Blue67.1%
CMYK percentages
Cyan82.1%
Magenta0.0%
Yellow23.3%
Key (black)12.5%
Color previews
#28dfab text on a black background
contrast 12.23:1
Card sample
#28dfab text on a white background
contrast 1.72:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #28dfab;
Background color
Panel with #28dfab background
background-color: #28dfab;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #28dfab;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 223, 171, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 223, 171, 0.45);
Border & gradient
Gradient panel
border: 3px solid #28dfab; background: linear-gradient(135deg, #28dfab, #2899DF);