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#40f4cd

a balanced, electric cyan · cool · closest name: aquamarine

RGB
64, 244, 205
HSL
167°, 89%, 60%
CMYK
74, 0, 16, 4
Luminance
0.7020

Every format

HEX#40f4cd
RGBrgb(64, 244, 205)
HSLhsl(167, 89%, 60%)
CMYKcmyk(74%, 0%, 16%, 4%)
LABlab(87.1 -53.3 6.0)
LCHlch(87.1 53.6 173.5)
OKLCHoklch(0.870 0.151 174.3)

Copy-ready code

/* CSS */
color: #40f4cd;
background-color: #40f4cd;
/* Tailwind (arbitrary) */
class="text-[#40f4cd] bg-[#40f4cd]"
/* SCSS */
$brand: #40f4cd;
/* SwiftUI */
Color(red: 0.251, green: 0.957, blue: 0.804)
/* Android */
Color.parseColor("#40f4cd")

Accessibility — WCAG contrast

Aa
#40f4cd on white: 1.40:1
AA ✗ fail · AA-large · AAA
Aa
#40f4cd on black: 15.04:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red25.1%
Green95.7%
Blue80.4%

CMYK percentages

Cyan73.8%
Magenta0.0%
Yellow16.0%
Key (black)4.3%

Color previews

#40f4cd text on a black background

contrast 15.04:1

Card sample

#40f4cd text on a white background

contrast 1.40:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #40f4cd;
Background color
Panel with #40f4cd background
background-color: #40f4cd;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #40f4cd;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(64, 244, 205, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 244, 205, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40f4cd;
background: linear-gradient(135deg, #40f4cd, #40A3F4);

Monochromatic scale

Palettes built from #40f4cd

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #40f4cd in the Color Lab