#21dfdf
a balanced, vivid cyan · cool · closest name: turquoise
RGB
33, 223, 223
HSL
180°, 75%, 50%
CMYK
85, 0, 0, 13
Luminance
0.5843
Every format
| HEX | #21dfdf |
| RGB | rgb(33, 223, 223) |
| HSL | hsl(180, 75%, 50%) |
| CMYK | cmyk(85%, 0%, 0%, 13%) |
| LAB | lab(81.0 -42.3 -12.5) |
| LCH | lch(81.0 44.1 196.4) |
| OKLCH | oklch(0.820 0.136 194.8) |
Copy-ready code
/* CSS */
color: #21dfdf;
background-color: #21dfdf;
/* Tailwind (arbitrary) */
class="text-[#21dfdf] bg-[#21dfdf]"
/* SCSS */
$brand: #21dfdf;
/* SwiftUI */
Color(red: 0.129, green: 0.875, blue: 0.875)
/* Android */
Color.parseColor("#21dfdf")Accessibility — WCAG contrast
Aa
#21dfdf on white: 1.66:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21dfdf on black: 12.69:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green87.5%
Blue87.5%
CMYK percentages
Cyan85.2%
Magenta0.0%
Yellow0.0%
Key (black)12.5%
Color previews
#21dfdf text on a black background
contrast 12.69:1
Card sample
#21dfdf text on a white background
contrast 1.66:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21dfdf;
Background color
Panel with #21dfdf background
background-color: #21dfdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21dfdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 223, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 223, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21dfdf; background: linear-gradient(135deg, #21dfdf, #2160DF);