#42dfad
a balanced, vivid cyan · cool · closest name: aquamarine
RGB
66, 223, 173
HSL
161°, 71%, 57%
CMYK
70, 0, 22, 13
Luminance
0.5695
Every format
| HEX | #42dfad |
| RGB | rgb(66, 223, 173) |
| HSL | hsl(161, 71%, 57%) |
| CMYK | cmyk(70%, 0%, 22%, 13%) |
| LAB | lab(80.2 -52.1 12.9) |
| LCH | lch(80.2 53.7 166.1) |
| OKLCH | oklch(0.810 0.148 167.1) |
Copy-ready code
/* CSS */
color: #42dfad;
background-color: #42dfad;
/* Tailwind (arbitrary) */
class="text-[#42dfad] bg-[#42dfad]"
/* SCSS */
$brand: #42dfad;
/* SwiftUI */
Color(red: 0.259, green: 0.875, blue: 0.678)
/* Android */
Color.parseColor("#42dfad")Accessibility — WCAG contrast
Aa
#42dfad on white: 1.69:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42dfad on black: 12.39:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green87.5%
Blue67.8%
CMYK percentages
Cyan70.4%
Magenta0.0%
Yellow22.4%
Key (black)12.5%
Color previews
#42dfad text on a black background
contrast 12.39:1
Card sample
#42dfad text on a white background
contrast 1.69:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42dfad;
Background color
Panel with #42dfad background
background-color: #42dfad;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42dfad;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 223, 173, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 223, 173, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42dfad; background: linear-gradient(135deg, #42dfad, #42A8DF);