#21d9da
a balanced, vivid cyan · cool · closest name: turquoise
RGB
33, 217, 218
HSL
180°, 74%, 49%
CMYK
85, 1, 0, 15
Luminance
0.5501
Every format
| HEX | #21d9da |
| RGB | rgb(33, 217, 218) |
| HSL | hsl(180, 74%, 49%) |
| CMYK | cmyk(85%, 1%, 0%, 15%) |
| LAB | lab(79.0 -41.0 -12.7) |
| LCH | lch(79.0 43.0 197.2) |
| OKLCH | oklch(0.804 0.133 195.4) |
Copy-ready code
/* CSS */
color: #21d9da;
background-color: #21d9da;
/* Tailwind (arbitrary) */
class="text-[#21d9da] bg-[#21d9da]"
/* SCSS */
$brand: #21d9da;
/* SwiftUI */
Color(red: 0.129, green: 0.851, blue: 0.855)
/* Android */
Color.parseColor("#21d9da")Accessibility — WCAG contrast
Aa
#21d9da on white: 1.75:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21d9da on black: 12.00:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green85.1%
Blue85.5%
CMYK percentages
Cyan84.9%
Magenta0.5%
Yellow0.0%
Key (black)14.5%
Color previews
#21d9da text on a black background
contrast 12.00:1
Card sample
#21d9da text on a white background
contrast 1.75:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21d9da;
Background color
Panel with #21d9da background
background-color: #21d9da;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21d9da;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 217, 218, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 217, 218, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21d9da; background: linear-gradient(135deg, #21d9da, #215EDA);