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#40cdab

a balanced, vivid cyan · cool · closest name: turquoise

RGB
64, 205, 171
HSL
166°, 59%, 53%
CMYK
69, 0, 17, 20
Luminance
0.4769

Every format

HEX#40cdab
RGBrgb(64, 205, 171)
HSLhsl(166, 59%, 53%)
CMYKcmyk(69%, 0%, 17%, 20%)
LABlab(74.6 -45.4 6.1)
LCHlch(74.6 45.8 172.3)
OKLCHoklch(0.765 0.129 173.1)

Copy-ready code

/* CSS */
color: #40cdab;
background-color: #40cdab;
/* Tailwind (arbitrary) */
class="text-[#40cdab] bg-[#40cdab]"
/* SCSS */
$brand: #40cdab;
/* SwiftUI */
Color(red: 0.251, green: 0.804, blue: 0.671)
/* Android */
Color.parseColor("#40cdab")

Accessibility — WCAG contrast

Aa
#40cdab on white: 1.99:1
AA ✗ fail · AA-large · AAA
Aa
#40cdab on black: 10.54:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red25.1%
Green80.4%
Blue67.1%

CMYK percentages

Cyan68.8%
Magenta0.0%
Yellow16.6%
Key (black)19.6%

Color previews

#40cdab text on a black background

contrast 10.54:1

Card sample

#40cdab text on a white background

contrast 1.99:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

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

Glowing headline

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

Soft neon halo

text-shadow: 0 0 14px rgba(64, 205, 171, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 205, 171, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40cdab;
background: linear-gradient(135deg, #40cdab, #4091CD);

Monochromatic scale

Palettes built from #40cdab

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #40cdab in the Color Lab