#42feee
a balanced, electric cyan · cool · closest name: cyan
RGB
66, 254, 238
HSL
175°, 99%, 63%
CMYK
74, 0, 6, 0
Luminance
0.7821
Every format
| HEX | #42feee |
| RGB | rgb(66, 254, 238) |
| HSL | hsl(175, 99%, 63%) |
| CMYK | cmyk(74%, 0%, 6%, 0%) |
| LAB | lab(90.9 -48.8 -5.6) |
| LCH | lch(90.9 49.1 186.6) |
| OKLCH | oklch(0.903 0.146 186.3) |
Copy-ready code
/* CSS */
color: #42feee;
background-color: #42feee;
/* Tailwind (arbitrary) */
class="text-[#42feee] bg-[#42feee]"
/* SCSS */
$brand: #42feee;
/* SwiftUI */
Color(red: 0.259, green: 0.996, blue: 0.933)
/* Android */
Color.parseColor("#42feee")Accessibility — WCAG contrast
Aa
#42feee on white: 1.26:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42feee on black: 16.64:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green99.6%
Blue93.3%
CMYK percentages
Cyan74.0%
Magenta0.0%
Yellow6.3%
Key (black)0.4%
Color previews
#42feee text on a black background
contrast 16.64:1
Card sample
#42feee text on a white background
contrast 1.26:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42feee;
Background color
Panel with #42feee background
background-color: #42feee;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42feee;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 254, 238, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 254, 238, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42feee; background: linear-gradient(135deg, #42feee, #4291FE);