#21dfee
a balanced, electric cyan · cool · closest name: cyan
RGB
33, 223, 238
HSL
184°, 86%, 53%
CMYK
86, 6, 0, 7
Luminance
0.5927
Every format
| HEX | #21dfee |
| RGB | rgb(33, 223, 238) |
| HSL | hsl(184, 86%, 53%) |
| CMYK | cmyk(86%, 6%, 0%, 7%) |
| LAB | lab(81.4 -37.8 -19.8) |
| LCH | lch(81.4 42.7 207.6) |
| OKLCH | oklch(0.826 0.137 203.7) |
Copy-ready code
/* CSS */
color: #21dfee;
background-color: #21dfee;
/* Tailwind (arbitrary) */
class="text-[#21dfee] bg-[#21dfee]"
/* SCSS */
$brand: #21dfee;
/* SwiftUI */
Color(red: 0.129, green: 0.875, blue: 0.933)
/* Android */
Color.parseColor("#21dfee")Accessibility — WCAG contrast
Aa
#21dfee on white: 1.63:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21dfee on black: 12.85:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green87.5%
Blue93.3%
CMYK percentages
Cyan86.1%
Magenta6.3%
Yellow0.0%
Key (black)6.7%
Color previews
#21dfee text on a black background
contrast 12.85:1
Card sample
#21dfee text on a white background
contrast 1.63:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21dfee;
Background color
Panel with #21dfee background
background-color: #21dfee;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21dfee;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 223, 238, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 223, 238, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21dfee; background: linear-gradient(135deg, #21dfee, #2156EE);