#21f7df
a balanced, electric cyan · cool · closest name: turquoise
RGB
33, 247, 223
HSL
173°, 93%, 55%
CMYK
87, 0, 10, 3
Luminance
0.7217
Every format
| HEX | #21f7df |
| RGB | rgb(33, 247, 223) |
| HSL | hsl(173, 93%, 55%) |
| CMYK | cmyk(87%, 0%, 10%, 3%) |
| LAB | lab(88.0 -52.5 -2.0) |
| LCH | lch(88.0 52.6 182.2) |
| OKLCH | oklch(0.878 0.153 182.3) |
Copy-ready code
/* CSS */
color: #21f7df;
background-color: #21f7df;
/* Tailwind (arbitrary) */
class="text-[#21f7df] bg-[#21f7df]"
/* SCSS */
$brand: #21f7df;
/* SwiftUI */
Color(red: 0.129, green: 0.969, blue: 0.875)
/* Android */
Color.parseColor("#21f7df")Accessibility — WCAG contrast
Aa
#21f7df on white: 1.36:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21f7df on black: 15.43:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green96.9%
Blue87.5%
CMYK percentages
Cyan86.6%
Magenta0.0%
Yellow9.7%
Key (black)3.1%
Color previews
#21f7df text on a black background
contrast 15.43:1
Card sample
#21f7df text on a white background
contrast 1.36:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21f7df;
Background color
Panel with #21f7df background
background-color: #21f7df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21f7df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 247, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 247, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21f7df; background: linear-gradient(135deg, #21f7df, #2180F7);