#18ddf4
a balanced, electric cyan · cool · closest name: cyan
RGB
24, 221, 244
HSL
186°, 91%, 53%
CMYK
90, 9, 0, 4
Luminance
0.5844
Every format
| HEX | #18ddf4 |
| RGB | rgb(24, 221, 244) |
| HSL | hsl(186, 91%, 53%) |
| CMYK | cmyk(90%, 9%, 0%, 4%) |
| LAB | lab(81.0 -35.5 -23.6) |
| LCH | lch(81.0 42.6 213.7) |
| OKLCH | oklch(0.822 0.139 208.3) |
Copy-ready code
/* CSS */
color: #18ddf4;
background-color: #18ddf4;
/* Tailwind (arbitrary) */
class="text-[#18ddf4] bg-[#18ddf4]"
/* SCSS */
$brand: #18ddf4;
/* SwiftUI */
Color(red: 0.094, green: 0.867, blue: 0.957)
/* Android */
Color.parseColor("#18ddf4")Accessibility — WCAG contrast
Aa
#18ddf4 on white: 1.66:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#18ddf4 on black: 12.69:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.4%
Green86.7%
Blue95.7%
CMYK percentages
Cyan90.2%
Magenta9.4%
Yellow0.0%
Key (black)4.3%
Color previews
#18ddf4 text on a black background
contrast 12.69:1
Card sample
#18ddf4 text on a white background
contrast 1.66:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #18ddf4;
Background color
Panel with #18ddf4 background
background-color: #18ddf4;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #18ddf4;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(24, 221, 244, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(24, 221, 244, 0.45);
Border & gradient
Gradient panel
border: 3px solid #18ddf4; background: linear-gradient(135deg, #18ddf4, #184AF4);