#21f2cf
a balanced, electric cyan · cool · closest name: aquamarine
RGB
33, 242, 207
HSL
170°, 89%, 54%
CMYK
86, 0, 15, 5
Luminance
0.6833
Every format
| HEX | #21f2cf |
| RGB | rgb(33, 242, 207) |
| HSL | hsl(170, 89%, 54%) |
| CMYK | cmyk(86%, 0%, 15%, 5%) |
| LAB | lab(86.2 -54.7 3.6) |
| LCH | lch(86.2 54.8 176.2) |
| OKLCH | oklch(0.861 0.156 176.8) |
Copy-ready code
/* CSS */
color: #21f2cf;
background-color: #21f2cf;
/* Tailwind (arbitrary) */
class="text-[#21f2cf] bg-[#21f2cf]"
/* SCSS */
$brand: #21f2cf;
/* SwiftUI */
Color(red: 0.129, green: 0.949, blue: 0.812)
/* Android */
Color.parseColor("#21f2cf")Accessibility — WCAG contrast
Aa
#21f2cf on white: 1.43:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21f2cf on black: 14.67:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green94.9%
Blue81.2%
CMYK percentages
Cyan86.4%
Magenta0.0%
Yellow14.5%
Key (black)5.1%
Color previews
#21f2cf text on a black background
contrast 14.67:1
Card sample
#21f2cf text on a white background
contrast 1.43:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21f2cf;
Background color
Panel with #21f2cf background
background-color: #21f2cf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21f2cf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 242, 207, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 242, 207, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21f2cf; background: linear-gradient(135deg, #21f2cf, #2189F2);