#21f1df
a balanced, electric cyan · cool · closest name: turquoise
RGB
33, 241, 223
HSL
175°, 88%, 54%
CMYK
86, 0, 8, 6
Luminance
0.6856
Every format
| HEX | #21f1df |
| RGB | rgb(33, 241, 223) |
| HSL | hsl(175, 88%, 54%) |
| CMYK | cmyk(86%, 0%, 8%, 6%) |
| LAB | lab(86.3 -50.0 -4.6) |
| LCH | lch(86.3 50.3 185.3) |
| OKLCH | oklch(0.864 0.148 185.1) |
Copy-ready code
/* CSS */
color: #21f1df;
background-color: #21f1df;
/* Tailwind (arbitrary) */
class="text-[#21f1df] bg-[#21f1df]"
/* SCSS */
$brand: #21f1df;
/* SwiftUI */
Color(red: 0.129, green: 0.945, blue: 0.875)
/* Android */
Color.parseColor("#21f1df")Accessibility — WCAG contrast
Aa
#21f1df on white: 1.43:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21f1df on black: 14.71:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green94.5%
Blue87.5%
CMYK percentages
Cyan86.3%
Magenta0.0%
Yellow7.5%
Key (black)5.5%
Color previews
#21f1df text on a black background
contrast 14.71:1
Card sample
#21f1df text on a white background
contrast 1.43:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21f1df;
Background color
Panel with #21f1df background
background-color: #21f1df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21f1df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 241, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 241, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21f1df; background: linear-gradient(135deg, #21f1df, #2178F1);