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#40dfcc

a balanced, vivid cyan · cool · “turquoise”

RGB
64, 223, 204
HSL
173°, 71%, 56%
CMYK
71, 0, 9, 13
Luminance
0.5822

Every format

HEX#40dfcc
RGBrgb(64, 223, 204)
HSLhsl(173, 71%, 56%)
CMYKcmyk(71%, 0%, 9%, 13%)
LABlab(80.9 -44.7 -2.5)
LCHlch(80.9 44.8 183.2)
OKLCHoklch(0.819 0.131 183.3)

Copy-ready code

/* CSS */
color: #40dfcc;
background-color: #40dfcc;
/* Tailwind (arbitrary) */
class="text-[#40dfcc] bg-[#40dfcc]"
/* SCSS */
$brand: #40dfcc;
/* SwiftUI */
Color(red: 0.251, green: 0.875, blue: 0.800)
/* Android */
Color.parseColor("#40dfcc")

Accessibility — WCAG contrast

Aa
#40dfcc on white: 1.66:1
AA ✗ fail · AA-large · AAA
Aa
#40dfcc on black: 12.64:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red25.1%
Green87.5%
Blue80.0%

CMYK percentages

Cyan71.3%
Magenta0.0%
Yellow8.5%
Key (black)12.5%

Color previews

#40dfcc text on a black background

contrast 12.64:1

Card sample

#40dfcc text on a white background

contrast 1.66:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #40dfcc;
Background color
Panel with #40dfcc background
background-color: #40dfcc;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #40dfcc;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(64, 223, 204, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 223, 204, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40dfcc;
background: linear-gradient(135deg, #40dfcc, #4088DF);

Monochromatic scale

Palettes built from #40dfcc

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #40dfcc in the Color Lab