#21f3ac
a balanced, electric green · cool · closest name: aquamarine
RGB
33, 243, 172
HSL
160°, 90%, 54%
CMYK
86, 0, 29, 5
Luminance
0.6740
Every format
| HEX | #21f3ac |
| RGB | rgb(33, 243, 172) |
| HSL | hsl(160, 90%, 54%) |
| CMYK | cmyk(86%, 0%, 29%, 5%) |
| LAB | lab(85.7 -63.3 21.1) |
| LCH | lch(85.7 66.8 161.5) |
| OKLCH | oklch(0.855 0.181 162.7) |
Copy-ready code
/* CSS */
color: #21f3ac;
background-color: #21f3ac;
/* Tailwind (arbitrary) */
class="text-[#21f3ac] bg-[#21f3ac]"
/* SCSS */
$brand: #21f3ac;
/* SwiftUI */
Color(red: 0.129, green: 0.953, blue: 0.675)
/* Android */
Color.parseColor("#21f3ac")Accessibility — WCAG contrast
Aa
#21f3ac on white: 1.45:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21f3ac on black: 14.48:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green95.3%
Blue67.5%
CMYK percentages
Cyan86.4%
Magenta0.0%
Yellow29.2%
Key (black)4.7%
Color previews
#21f3ac text on a black background
contrast 14.48:1
Card sample
#21f3ac text on a white background
contrast 1.45:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21f3ac;
Background color
Panel with #21f3ac background
background-color: #21f3ac;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21f3ac;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 243, 172, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 243, 172, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21f3ac; background: linear-gradient(135deg, #21f3ac, #21AEF3);