#21ddfd
a balanced, electric cyan · cool · closest name: skyblue
RGB
33, 221, 253
HSL
189°, 98%, 56%
CMYK
87, 13, 0, 1
Luminance
0.5913
Every format
| HEX | #21ddfd |
| RGB | rgb(33, 221, 253) |
| HSL | hsl(189, 98%, 56%) |
| CMYK | cmyk(87%, 13%, 0%, 1%) |
| LAB | lab(81.4 -32.3 -27.8) |
| LCH | lch(81.4 42.6 220.8) |
| OKLCH | oklch(0.827 0.141 213.5) |
Copy-ready code
/* CSS */
color: #21ddfd;
background-color: #21ddfd;
/* Tailwind (arbitrary) */
class="text-[#21ddfd] bg-[#21ddfd]"
/* SCSS */
$brand: #21ddfd;
/* SwiftUI */
Color(red: 0.129, green: 0.867, blue: 0.992)
/* Android */
Color.parseColor("#21ddfd")Accessibility — WCAG contrast
Aa
#21ddfd on white: 1.64:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21ddfd on black: 12.83:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green86.7%
Blue99.2%
CMYK percentages
Cyan87.0%
Magenta12.6%
Yellow0.0%
Key (black)0.8%
Color previews
#21ddfd text on a black background
contrast 12.83:1
Card sample
#21ddfd text on a white background
contrast 1.64:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21ddfd;
Background color
Panel with #21ddfd background
background-color: #21ddfd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21ddfd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 221, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 221, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21ddfd; background: linear-gradient(135deg, #21ddfd, #214BFD);