#42d2df
a balanced, vivid cyan · cool · closest name: turquoise
RGB
66, 210, 223
HSL
185°, 71%, 57%
CMYK
70, 6, 0, 13
Luminance
0.5258
Every format
| HEX | #42d2df |
| RGB | rgb(66, 210, 223) |
| HSL | hsl(185, 71%, 57%) |
| CMYK | cmyk(70%, 6%, 0%, 13%) |
| LAB | lab(77.6 -33.3 -17.5) |
| LCH | lch(77.6 37.6 207.7) |
| OKLCH | oklch(0.794 0.120 203.9) |
Copy-ready code
/* CSS */
color: #42d2df;
background-color: #42d2df;
/* Tailwind (arbitrary) */
class="text-[#42d2df] bg-[#42d2df]"
/* SCSS */
$brand: #42d2df;
/* SwiftUI */
Color(red: 0.259, green: 0.824, blue: 0.875)
/* Android */
Color.parseColor("#42d2df")Accessibility — WCAG contrast
Aa
#42d2df on white: 1.82:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42d2df on black: 11.52:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green82.4%
Blue87.5%
CMYK percentages
Cyan70.4%
Magenta5.8%
Yellow0.0%
Key (black)12.5%
Color previews
#42d2df text on a black background
contrast 11.52:1
Card sample
#42d2df text on a white background
contrast 1.82:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42d2df;
Background color
Panel with #42d2df background
background-color: #42d2df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42d2df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 210, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 210, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42d2df; background: linear-gradient(135deg, #42d2df, #4269DF);