#21fffd
a balanced, electric cyan · cool · “cyan”
RGB
33, 255, 253
HSL
180°, 100%, 57%
CMYK
87, 0, 1, 0
Luminance
0.7894
Every format
| HEX | #21fffd |
| RGB | rgb(33, 255, 253) |
| HSL | hsl(180, 100%, 57%) |
| CMYK | cmyk(87%, 0%, 1%, 0%) |
| LAB | lab(91.2 -47.7 -12.9) |
| LCH | lch(91.2 49.4 195.2) |
| OKLCH | oklch(0.906 0.152 193.8) |
Copy-ready code
/* CSS */
color: #21fffd;
background-color: #21fffd;
/* Tailwind (arbitrary) */
class="text-[#21fffd] bg-[#21fffd]"
/* SCSS */
$brand: #21fffd;
/* SwiftUI */
Color(red: 0.129, green: 1.000, blue: 0.992)
/* Android */
Color.parseColor("#21fffd")Accessibility — WCAG contrast
Aa
#21fffd on white: 1.25:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21fffd on black: 16.79:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green100.0%
Blue99.2%
CMYK percentages
Cyan87.1%
Magenta0.0%
Yellow0.8%
Key (black)0.0%
Color previews
#21fffd text on a black background
contrast 16.79:1
Card sample
#21fffd text on a white background
contrast 1.25:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21fffd;
Background color
Panel with #21fffd background
background-color: #21fffd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21fffd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 255, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 255, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21fffd; background: linear-gradient(135deg, #21fffd, #216DFF);