#37dfb7
a balanced, vivid cyan · cool · closest name: aquamarine
RGB
55, 223, 183
HSL
166°, 72%, 55%
CMYK
75, 0, 18, 13
Luminance
0.5701
Every format
| HEX | #37dfb7 |
| RGB | rgb(55, 223, 183) |
| HSL | hsl(166, 72%, 55%) |
| CMYK | cmyk(75%, 0%, 18%, 13%) |
| LAB | lab(80.2 -51.1 7.7) |
| LCH | lch(80.2 51.7 171.5) |
| OKLCH | oklch(0.811 0.145 172.3) |
Copy-ready code
/* CSS */
color: #37dfb7;
background-color: #37dfb7;
/* Tailwind (arbitrary) */
class="text-[#37dfb7] bg-[#37dfb7]"
/* SCSS */
$brand: #37dfb7;
/* SwiftUI */
Color(red: 0.216, green: 0.875, blue: 0.718)
/* Android */
Color.parseColor("#37dfb7")Accessibility — WCAG contrast
Aa
#37dfb7 on white: 1.69:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#37dfb7 on black: 12.40:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red21.6%
Green87.5%
Blue71.8%
CMYK percentages
Cyan75.3%
Magenta0.0%
Yellow17.9%
Key (black)12.5%
Color previews
#37dfb7 text on a black background
contrast 12.40:1
Card sample
#37dfb7 text on a white background
contrast 1.69:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #37dfb7;
Background color
Panel with #37dfb7 background
background-color: #37dfb7;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #37dfb7;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(55, 223, 183, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(55, 223, 183, 0.45);
Border & gradient
Gradient panel
border: 3px solid #37dfb7; background: linear-gradient(135deg, #37dfb7, #3797DF);