#40dfaa
a balanced, vivid cyan · cool · closest name: aquamarine
RGB
64, 223, 170
HSL
160°, 71%, 56%
CMYK
71, 0, 24, 13
Luminance
0.5677
Every format
| HEX | #40dfaa |
| RGB | rgb(64, 223, 170) |
| HSL | hsl(160, 71%, 56%) |
| CMYK | cmyk(71%, 0%, 24%, 13%) |
| LAB | lab(80.0 -53.1 14.3) |
| LCH | lch(80.0 55.0 164.9) |
| OKLCH | oklch(0.809 0.151 165.9) |
Copy-ready code
/* CSS */
color: #40dfaa;
background-color: #40dfaa;
/* Tailwind (arbitrary) */
class="text-[#40dfaa] bg-[#40dfaa]"
/* SCSS */
$brand: #40dfaa;
/* SwiftUI */
Color(red: 0.251, green: 0.875, blue: 0.667)
/* Android */
Color.parseColor("#40dfaa")Accessibility — WCAG contrast
Aa
#40dfaa on white: 1.70:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40dfaa on black: 12.35:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green87.5%
Blue66.7%
CMYK percentages
Cyan71.3%
Magenta0.0%
Yellow23.8%
Key (black)12.5%
Color previews
#40dfaa text on a black background
contrast 12.35:1
Card sample
#40dfaa text on a white background
contrast 1.70:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40dfaa;
Background color
Panel with #40dfaa background
background-color: #40dfaa;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40dfaa;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 223, 170, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 223, 170, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40dfaa; background: linear-gradient(135deg, #40dfaa, #40AADF);