#21fdf7
a balanced, electric cyan · cool · closest name: cyan
RGB
33, 253, 247
HSL
178°, 98%, 56%
CMYK
87, 0, 2, 1
Luminance
0.7729
Every format
| HEX | #21fdf7 |
| RGB | rgb(33, 253, 247) |
| HSL | hsl(178, 98%, 56%) |
| CMYK | cmyk(87%, 0%, 2%, 1%) |
| LAB | lab(90.5 -48.5 -10.9) |
| LCH | lch(90.5 49.7 192.7) |
| OKLCH | oklch(0.900 0.151 191.7) |
Copy-ready code
/* CSS */
color: #21fdf7;
background-color: #21fdf7;
/* Tailwind (arbitrary) */
class="text-[#21fdf7] bg-[#21fdf7]"
/* SCSS */
$brand: #21fdf7;
/* SwiftUI */
Color(red: 0.129, green: 0.992, blue: 0.969)
/* Android */
Color.parseColor("#21fdf7")Accessibility — WCAG contrast
Aa
#21fdf7 on white: 1.28:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21fdf7 on black: 16.46:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green99.2%
Blue96.9%
CMYK percentages
Cyan87.0%
Magenta0.0%
Yellow2.4%
Key (black)0.8%
Color previews
#21fdf7 text on a black background
contrast 16.46:1
Card sample
#21fdf7 text on a white background
contrast 1.28:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21fdf7;
Background color
Panel with #21fdf7 background
background-color: #21fdf7;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21fdf7;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 253, 247, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 253, 247, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21fdf7; background: linear-gradient(135deg, #21fdf7, #2170FD);