#40f3df
a balanced, electric cyan · cool · closest name: turquoise
RGB
64, 243, 223
HSL
173°, 88%, 60%
CMYK
74, 0, 8, 5
Luminance
0.7052
Every format
| HEX | #40f3df |
| RGB | rgb(64, 243, 223) |
| HSL | hsl(173, 88%, 60%) |
| CMYK | cmyk(74%, 0%, 8%, 5%) |
| LAB | lab(87.3 -48.3 -3.1) |
| LCH | lch(87.3 48.4 183.7) |
| OKLCH | oklch(0.872 0.142 183.7) |
Copy-ready code
/* CSS */
color: #40f3df;
background-color: #40f3df;
/* Tailwind (arbitrary) */
class="text-[#40f3df] bg-[#40f3df]"
/* SCSS */
$brand: #40f3df;
/* SwiftUI */
Color(red: 0.251, green: 0.953, blue: 0.875)
/* Android */
Color.parseColor("#40f3df")Accessibility — WCAG contrast
Aa
#40f3df on white: 1.39:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40f3df on black: 15.10:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green95.3%
Blue87.5%
CMYK percentages
Cyan73.7%
Magenta0.0%
Yellow8.2%
Key (black)4.7%
Color previews
#40f3df text on a black background
contrast 15.10:1
Card sample
#40f3df text on a white background
contrast 1.39:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40f3df;
Background color
Panel with #40f3df background
background-color: #40f3df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40f3df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 243, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 243, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40f3df; background: linear-gradient(135deg, #40f3df, #4090F3);