#28af8f
a dark, vivid cyan · cool · closest name: seagreen
RGB
40, 175, 143
HSL
166°, 63%, 42%
CMYK
77, 0, 18, 31
Luminance
0.3309
Every format
| HEX | #28af8f |
| RGB | rgb(40, 175, 143) |
| HSL | hsl(166, 63%, 42%) |
| CMYK | cmyk(77%, 0%, 18%, 31%) |
| LAB | lab(64.2 -42.8 6.4) |
| LCH | lch(64.2 43.3 171.5) |
| OKLCH | oklch(0.676 0.121 172.3) |
Copy-ready code
/* CSS */
color: #28af8f;
background-color: #28af8f;
/* Tailwind (arbitrary) */
class="text-[#28af8f] bg-[#28af8f]"
/* SCSS */
$brand: #28af8f;
/* SwiftUI */
Color(red: 0.157, green: 0.686, blue: 0.561)
/* Android */
Color.parseColor("#28af8f")Accessibility — WCAG contrast
Aa
#28af8f on white: 2.76:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#28af8f on black: 7.62:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green68.6%
Blue56.1%
CMYK percentages
Cyan77.1%
Magenta0.0%
Yellow18.3%
Key (black)31.4%
Color previews
#28af8f text on a black background
contrast 7.62:1
Card sample
#28af8f text on a white background
contrast 2.76:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #28af8f;
Background color
Panel with #28af8f background
background-color: #28af8f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #28af8f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 175, 143, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 175, 143, 0.45);
Border & gradient
Gradient panel
border: 3px solid #28af8f; background: linear-gradient(135deg, #28af8f, #2875AF);