#21faff
a balanced, electric cyan · cool · closest name: cyan
RGB
33, 250, 255
HSL
181°, 100%, 57%
CMYK
87, 2, 0, 0
Luminance
0.7591
Every format
| HEX | #21faff |
| RGB | rgb(33, 250, 255) |
| HSL | hsl(181, 100%, 57%) |
| CMYK | cmyk(87%, 2%, 0%, 0%) |
| LAB | lab(89.8 -44.9 -16.1) |
| LCH | lch(89.8 47.7 199.7) |
| OKLCH | oklch(0.895 0.149 197.5) |
Copy-ready code
/* CSS */
color: #21faff;
background-color: #21faff;
/* Tailwind (arbitrary) */
class="text-[#21faff] bg-[#21faff]"
/* SCSS */
$brand: #21faff;
/* SwiftUI */
Color(red: 0.129, green: 0.980, blue: 1.000)
/* Android */
Color.parseColor("#21faff")Accessibility — WCAG contrast
Aa
#21faff on white: 1.30:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21faff on black: 16.18:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green98.0%
Blue100.0%
CMYK percentages
Cyan87.1%
Magenta2.0%
Yellow0.0%
Key (black)0.0%
Color previews
#21faff text on a black background
contrast 16.18:1
Card sample
#21faff text on a white background
contrast 1.30:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21faff;
Background color
Panel with #21faff background
background-color: #21faff;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21faff;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 250, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 250, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21faff; background: linear-gradient(135deg, #21faff, #2166FF);