#21f0df
a balanced, electric cyan · cool · closest name: turquoise
RGB
33, 240, 223
HSL
175°, 87%, 54%
CMYK
86, 0, 7, 6
Luminance
0.6797
Every format
| HEX | #21f0df |
| RGB | rgb(33, 240, 223) |
| HSL | hsl(175, 87%, 54%) |
| CMYK | cmyk(86%, 0%, 7%, 6%) |
| LAB | lab(86.0 -49.6 -5.0) |
| LCH | lch(86.0 49.9 185.8) |
| OKLCH | oklch(0.861 0.147 185.6) |
Copy-ready code
/* CSS */
color: #21f0df;
background-color: #21f0df;
/* Tailwind (arbitrary) */
class="text-[#21f0df] bg-[#21f0df]"
/* SCSS */
$brand: #21f0df;
/* SwiftUI */
Color(red: 0.129, green: 0.941, blue: 0.875)
/* Android */
Color.parseColor("#21f0df")Accessibility — WCAG contrast
Aa
#21f0df on white: 1.44:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21f0df on black: 14.59:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green94.1%
Blue87.5%
CMYK percentages
Cyan86.3%
Magenta0.0%
Yellow7.1%
Key (black)5.9%
Color previews
#21f0df text on a black background
contrast 14.59:1
Card sample
#21f0df text on a white background
contrast 1.44:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21f0df;
Background color
Panel with #21f0df background
background-color: #21f0df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21f0df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 240, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 240, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21f0df; background: linear-gradient(135deg, #21f0df, #2177F0);