#42dfcc
a balanced, vivid cyan · cool · “turquoise”
RGB
66, 223, 204
HSL
173°, 71%, 57%
CMYK
70, 0, 9, 13
Luminance
0.5829
Every format
| HEX | #42dfcc |
| RGB | rgb(66, 223, 204) |
| HSL | hsl(173, 71%, 57%) |
| CMYK | cmyk(70%, 0%, 9%, 13%) |
| LAB | lab(80.9 -44.5 -2.4) |
| LCH | lch(80.9 44.5 183.1) |
| OKLCH | oklch(0.819 0.131 183.2) |
Copy-ready code
/* CSS */
color: #42dfcc;
background-color: #42dfcc;
/* Tailwind (arbitrary) */
class="text-[#42dfcc] bg-[#42dfcc]"
/* SCSS */
$brand: #42dfcc;
/* SwiftUI */
Color(red: 0.259, green: 0.875, blue: 0.800)
/* Android */
Color.parseColor("#42dfcc")Accessibility — WCAG contrast
Aa
#42dfcc on white: 1.66:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42dfcc on black: 12.66:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green87.5%
Blue80.0%
CMYK percentages
Cyan70.4%
Magenta0.0%
Yellow8.5%
Key (black)12.5%
Color previews
#42dfcc text on a black background
contrast 12.66:1
Card sample
#42dfcc text on a white background
contrast 1.66:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42dfcc;
Background color
Panel with #42dfcc background
background-color: #42dfcc;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42dfcc;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 223, 204, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 223, 204, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42dfcc; background: linear-gradient(135deg, #42dfcc, #428ADF);