#28dfb7
a balanced, vivid cyan · cool · closest name: aquamarine
RGB
40, 223, 183
HSL
167°, 74%, 52%
CMYK
82, 0, 18, 13
Luminance
0.5665
Every format
| HEX | #28dfb7 |
| RGB | rgb(40, 223, 183) |
| HSL | hsl(167, 74%, 52%) |
| CMYK | cmyk(82%, 0%, 18%, 13%) |
| LAB | lab(80.0 -52.6 7.3) |
| LCH | lch(80.0 53.1 172.1) |
| OKLCH | oklch(0.809 0.149 172.8) |
Copy-ready code
/* CSS */
color: #28dfb7;
background-color: #28dfb7;
/* Tailwind (arbitrary) */
class="text-[#28dfb7] bg-[#28dfb7]"
/* SCSS */
$brand: #28dfb7;
/* SwiftUI */
Color(red: 0.157, green: 0.875, blue: 0.718)
/* Android */
Color.parseColor("#28dfb7")Accessibility — WCAG contrast
Aa
#28dfb7 on white: 1.70:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#28dfb7 on black: 12.33:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green87.5%
Blue71.8%
CMYK percentages
Cyan82.1%
Magenta0.0%
Yellow17.9%
Key (black)12.5%
Color previews
#28dfb7 text on a black background
contrast 12.33:1
Card sample
#28dfb7 text on a white background
contrast 1.70:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #28dfb7;
Background color
Panel with #28dfb7 background
background-color: #28dfb7;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #28dfb7;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 223, 183, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 223, 183, 0.45);
Border & gradient
Gradient panel
border: 3px solid #28dfb7; background: linear-gradient(135deg, #28dfb7, #288DDF);