#42dfda
a balanced, vivid cyan · cool · closest name: turquoise
RGB
66, 223, 218
HSL
178°, 71%, 57%
CMYK
70, 0, 2, 13
Luminance
0.5900
Every format
| HEX | #42dfda |
| RGB | rgb(66, 223, 218) |
| HSL | hsl(178, 71%, 57%) |
| CMYK | cmyk(70%, 0%, 2%, 13%) |
| LAB | lab(81.3 -40.7 -9.3) |
| LCH | lch(81.3 41.7 192.9) |
| OKLCH | oklch(0.824 0.127 191.8) |
Copy-ready code
/* CSS */
color: #42dfda;
background-color: #42dfda;
/* Tailwind (arbitrary) */
class="text-[#42dfda] bg-[#42dfda]"
/* SCSS */
$brand: #42dfda;
/* SwiftUI */
Color(red: 0.259, green: 0.875, blue: 0.855)
/* Android */
Color.parseColor("#42dfda")Accessibility — WCAG contrast
Aa
#42dfda on white: 1.64:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42dfda on black: 12.80:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green87.5%
Blue85.5%
CMYK percentages
Cyan70.4%
Magenta0.0%
Yellow2.2%
Key (black)12.5%
Color previews
#42dfda text on a black background
contrast 12.80:1
Card sample
#42dfda text on a white background
contrast 1.64:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42dfda;
Background color
Panel with #42dfda background
background-color: #42dfda;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42dfda;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 223, 218, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 223, 218, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42dfda; background: linear-gradient(135deg, #42dfda, #427BDF);