#21d4eb
a balanced, electric cyan · cool · closest name: skyblue
RGB
33, 212, 235
HSL
187°, 84%, 53%
CMYK
86, 10, 0, 8
Luminance
0.5341
Every format
| HEX | #21d4eb |
| RGB | rgb(33, 212, 235) |
| HSL | hsl(187, 84%, 53%) |
| CMYK | cmyk(86%, 10%, 0%, 8%) |
| LAB | lab(78.1 -33.6 -23.2) |
| LCH | lch(78.1 40.8 214.6) |
| OKLCH | oklch(0.798 0.133 209.1) |
Copy-ready code
/* CSS */
color: #21d4eb;
background-color: #21d4eb;
/* Tailwind (arbitrary) */
class="text-[#21d4eb] bg-[#21d4eb]"
/* SCSS */
$brand: #21d4eb;
/* SwiftUI */
Color(red: 0.129, green: 0.831, blue: 0.922)
/* Android */
Color.parseColor("#21d4eb")Accessibility — WCAG contrast
Aa
#21d4eb on white: 1.80:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21d4eb on black: 11.68:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green83.1%
Blue92.2%
CMYK percentages
Cyan86.0%
Magenta9.8%
Yellow0.0%
Key (black)7.8%
Color previews
#21d4eb text on a black background
contrast 11.68:1
Card sample
#21d4eb text on a white background
contrast 1.80:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21d4eb;
Background color
Panel with #21d4eb background
background-color: #21d4eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21d4eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 212, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 212, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21d4eb; background: linear-gradient(135deg, #21d4eb, #214DEB);