#40D3CF#40D3CF

#40D3CF is a light, vivid teal. Relative luminance 0.522; OKLCH L 79.1% C 0.121 H 192.3°. Best body text is #000000 at 11.44:1 contrast (WCAG AA passes).

Color values

HEX#40D3CF
RGBrgb(64, 211, 207)
HSLhsl(178, 63%, 54%)
HSVhsv(178, 70%, 83%)
CMYKcmyk(69.7%, 0%, 1.9%, 17.3%)
CIE-LABlab(77.39, -38.55, -9.23)
CIE-LCHlch(77.39, 39.64, 193.47°)
OKLaboklab(79.07% -0.118 -0.0257)
OKLCHoklch(79.07% 0.121 192.3)
XYZxyz(36.6659, 52.1792, 67.1586)
Luminance0.5218 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40D3CF #D34044
analogous
#40D386 #40D3CF #408ED3
triadic
#40D3CF #CF40D3 #D3CF40
tetradic
#40D3CF #8640D3 #D34044 #8ED340
square
#40D3CF #8640D3 #D34044 #8ED340
split-complementary
#40D3CF #D3408E #D38640
monochromatic
#1D7C79 #28AEAA #40D3CF #72DEDC #A3EAE8

Accessibility & contrast

On white

1.84
#40D3CF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.44
#40D3CF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D3CF
11.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40D3CF#FFFFFF#000000##000000
##40D3CF1.001.8411.4411.44
#FFFFFF1.841.0021.0021.00
#00000011.4421.001.001.00
##00000011.4421.001.001.00

Color blindness preview

Protanopia (red-blind)
#C6C8CF
Deuteranopia (green-blind)
#B1B8D0
Tritanopia (blue-blind)
#00D9D1
Achromatopsia (no color)
#BFBFBF

Design tokens & code

CSS
--color: #40d3cf;
/* rgb */ color: rgb(64, 211, 207);
/* oklch */ color: oklch(79.1% 0.121 192.3);
Tailwind
colors: {
  custom: {
    50: '#8ae1dd',
    500: '#40d3cf',
    950: '#000000',
  },
}
SCSS
$custom: #40d3cf;
$custom-light: #8ae1dd;
$custom-dark: #000000;
JSON
{
  "hex": "#40d3cf",
  "rgb": {
    "r": 64,
    "g": 211,
    "b": 207
  },
  "hsl": {
    "h": 178.367,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.79071,
    "c": 0.12075,
    "h": 192.3
  },
  "luminance": 0.52184
}

Semantic roles & 50–950 ramp

primary
#40D3CF
secondary
#843336
accent
#4247E6
background
#FCFEFE
surface
#F4FCFC
border
#CED5D5
text
#0D1515
muted
#7F8484

Preview Lab

Preview with #40D3CF

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#40D3CF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva