#3fffef
a balanced, electric cyan · cool · closest name: cyan
RGB
63, 255, 239
HSL
175°, 100%, 62%
CMYK
75, 0, 6, 0
Luminance
0.7881
Every format
| HEX | #3fffef |
| RGB | rgb(63, 255, 239) |
| HSL | hsl(175, 100%, 62%) |
| CMYK | cmyk(75%, 0%, 6%, 0%) |
| LAB | lab(91.1 -49.3 -5.7) |
| LCH | lch(91.1 49.6 186.6) |
| OKLCH | oklch(0.906 0.147 186.4) |
Copy-ready code
/* CSS */
color: #3fffef;
background-color: #3fffef;
/* Tailwind (arbitrary) */
class="text-[#3fffef] bg-[#3fffef]"
/* SCSS */
$brand: #3fffef;
/* SwiftUI */
Color(red: 0.247, green: 1.000, blue: 0.937)
/* Android */
Color.parseColor("#3fffef")Accessibility — WCAG contrast
Aa
#3fffef on white: 1.25:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#3fffef on black: 16.76:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green100.0%
Blue93.7%
CMYK percentages
Cyan75.3%
Magenta0.0%
Yellow6.3%
Key (black)0.0%
Color previews
#3fffef text on a black background
contrast 16.76:1
Card sample
#3fffef text on a white background
contrast 1.25:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3fffef;
Background color
Panel with #3fffef background
background-color: #3fffef;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3fffef;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 255, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 255, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3fffef; background: linear-gradient(135deg, #3fffef, #3F8FFF);