#42f3eb
a balanced, electric cyan · cool · closest name: cyan
RGB
66, 243, 235
HSL
177°, 88%, 61%
CMYK
73, 0, 3, 5
Luminance
0.7126
Every format
| HEX | #42f3eb |
| RGB | rgb(66, 243, 235) |
| HSL | hsl(177, 88%, 61%) |
| CMYK | cmyk(73%, 0%, 3%, 5%) |
| LAB | lab(87.6 -44.9 -8.9) |
| LCH | lch(87.6 45.8 191.2) |
| OKLCH | oklch(0.876 0.138 190.4) |
Copy-ready code
/* CSS */
color: #42f3eb;
background-color: #42f3eb;
/* Tailwind (arbitrary) */
class="text-[#42f3eb] bg-[#42f3eb]"
/* SCSS */
$brand: #42f3eb;
/* SwiftUI */
Color(red: 0.259, green: 0.953, blue: 0.922)
/* Android */
Color.parseColor("#42f3eb")Accessibility — WCAG contrast
Aa
#42f3eb on white: 1.38:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42f3eb on black: 15.25:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green95.3%
Blue92.2%
CMYK percentages
Cyan72.8%
Magenta0.0%
Yellow3.3%
Key (black)4.7%
Color previews
#42f3eb text on a black background
contrast 15.25:1
Card sample
#42f3eb text on a white background
contrast 1.38:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42f3eb;
Background color
Panel with #42f3eb background
background-color: #42f3eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42f3eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 243, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 243, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42f3eb; background: linear-gradient(135deg, #42f3eb, #4285F3);