#21acef
a balanced, electric cyan · cool · closest name: steelblue
RGB
33, 172, 239
HSL
200°, 87%, 53%
CMYK
86, 28, 0, 6
Luminance
0.3606
Every format
| HEX | #21acef |
| RGB | rgb(33, 172, 239) |
| HSL | hsl(200, 87%, 53%) |
| CMYK | cmyk(86%, 28%, 0%, 6%) |
| LAB | lab(66.6 -11.9 -43.2) |
| LCH | lch(66.6 44.8 254.6) |
| OKLCH | oklch(0.706 0.146 236.9) |
Copy-ready code
/* CSS */
color: #21acef;
background-color: #21acef;
/* Tailwind (arbitrary) */
class="text-[#21acef] bg-[#21acef]"
/* SCSS */
$brand: #21acef;
/* SwiftUI */
Color(red: 0.129, green: 0.675, blue: 0.937)
/* Android */
Color.parseColor("#21acef")Accessibility — WCAG contrast
Aa
#21acef on white: 2.56:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21acef on black: 8.21:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green67.5%
Blue93.7%
CMYK percentages
Cyan86.2%
Magenta28.0%
Yellow0.0%
Key (black)6.3%
Color previews
#21acef text on a black background
contrast 8.21:1
Card sample
#21acef text on a white background
contrast 2.56:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21acef;
Background color
Panel with #21acef background
background-color: #21acef;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21acef;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 172, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 172, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21acef; background: linear-gradient(135deg, #21acef, #2123EF);