#21dfab
a balanced, vivid cyan · cool · closest name: aquamarine
RGB
33, 223, 171
HSL
164°, 75%, 50%
CMYK
85, 0, 23, 13
Luminance
0.5604
Every format
| HEX | #21dfab |
| RGB | rgb(33, 223, 171) |
| HSL | hsl(164, 75%, 50%) |
| CMYK | cmyk(85%, 0%, 23%, 13%) |
| LAB | lab(79.6 -56.0 13.2) |
| LCH | lch(79.6 57.5 166.8) |
| OKLCH | oklch(0.805 0.158 167.7) |
Copy-ready code
/* CSS */
color: #21dfab;
background-color: #21dfab;
/* Tailwind (arbitrary) */
class="text-[#21dfab] bg-[#21dfab]"
/* SCSS */
$brand: #21dfab;
/* SwiftUI */
Color(red: 0.129, green: 0.875, blue: 0.671)
/* Android */
Color.parseColor("#21dfab")Accessibility — WCAG contrast
Aa
#21dfab on white: 1.72:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21dfab on black: 12.21:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green87.5%
Blue67.1%
CMYK percentages
Cyan85.2%
Magenta0.0%
Yellow23.3%
Key (black)12.5%
Color previews
#21dfab text on a black background
contrast 12.21:1
Card sample
#21dfab text on a white background
contrast 1.72:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21dfab;
Background color
Panel with #21dfab background
background-color: #21dfab;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21dfab;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 223, 171, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 223, 171, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21dfab; background: linear-gradient(135deg, #21dfab, #2194DF);