#40dfd3
a balanced, vivid cyan · cool · “turquoise”
RGB
64, 223, 211
HSL
176°, 71%, 56%
CMYK
71, 0, 5, 13
Luminance
0.5857
Every format
| HEX | #40dfd3 |
| RGB | rgb(64, 223, 211) |
| HSL | hsl(176, 71%, 56%) |
| CMYK | cmyk(71%, 0%, 5%, 13%) |
| LAB | lab(81.0 -42.8 -5.9) |
| LCH | lch(81.0 43.3 187.9) |
| OKLCH | oklch(0.821 0.129 187.5) |
Copy-ready code
/* CSS */
color: #40dfd3;
background-color: #40dfd3;
/* Tailwind (arbitrary) */
class="text-[#40dfd3] bg-[#40dfd3]"
/* SCSS */
$brand: #40dfd3;
/* SwiftUI */
Color(red: 0.251, green: 0.875, blue: 0.827)
/* Android */
Color.parseColor("#40dfd3")Accessibility — WCAG contrast
Aa
#40dfd3 on white: 1.65:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40dfd3 on black: 12.71:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green87.5%
Blue82.7%
CMYK percentages
Cyan71.3%
Magenta0.0%
Yellow5.4%
Key (black)12.5%
Color previews
#40dfd3 text on a black background
contrast 12.71:1
Card sample
#40dfd3 text on a white background
contrast 1.65:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40dfd3;
Background color
Panel with #40dfd3 background
background-color: #40dfd3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40dfd3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 223, 211, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 223, 211, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40dfd3; background: linear-gradient(135deg, #40dfd3, #4081DF);