#18ffef
a balanced, electric cyan · cool · closest name: cyan
RGB
24, 255, 239
HSL
176°, 100%, 55%
CMYK
91, 0, 6, 0
Luminance
0.7795
Every format
| HEX | #18ffef |
| RGB | rgb(24, 255, 239) |
| HSL | hsl(176, 100%, 55%) |
| CMYK | cmyk(91%, 0%, 6%, 0%) |
| LAB | lab(90.8 -52.0 -6.4) |
| LCH | lch(90.8 52.4 187.0) |
| OKLCH | oklch(0.901 0.155 186.7) |
Copy-ready code
/* CSS */
color: #18ffef;
background-color: #18ffef;
/* Tailwind (arbitrary) */
class="text-[#18ffef] bg-[#18ffef]"
/* SCSS */
$brand: #18ffef;
/* SwiftUI */
Color(red: 0.094, green: 1.000, blue: 0.937)
/* Android */
Color.parseColor("#18ffef")Accessibility — WCAG contrast
Aa
#18ffef on white: 1.27:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#18ffef on black: 16.59:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.4%
Green100.0%
Blue93.7%
CMYK percentages
Cyan90.6%
Magenta0.0%
Yellow6.3%
Key (black)0.0%
Color previews
#18ffef text on a black background
contrast 16.59:1
Card sample
#18ffef text on a white background
contrast 1.27:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #18ffef;
Background color
Panel with #18ffef background
background-color: #18ffef;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #18ffef;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(24, 255, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(24, 255, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #18ffef; background: linear-gradient(135deg, #18ffef, #1875FF);