#40D9CB#40D9CB

#40D9CB is a light, vivid teal. Relative luminance 0.550; OKLCH L 80.4% C 0.126 H 186.0°. Best body text is #000000 at 12.01:1 contrast (WCAG AA passes).

Color values

HEX#40D9CB
RGBrgb(64, 217, 203)
HSLhsl(175, 67%, 55%)
HSVhsv(175, 71%, 85%)
CMYKcmyk(70.5%, 0%, 6.5%, 14.9%)
CIE-LABlab(79.05, -42.34, -4.62)
CIE-LCHlch(79.05, 42.59, 186.23°)
OKLaboklab(80.39% -0.1256 -0.0132)
OKLCHoklch(80.39% 0.126 186)
XYZxyz(37.7016, 55.0231, 65.1219)
Luminance0.5503 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40D9CB #D9404E
analogous
#40D97F #40D9CB #409AD9
triadic
#40D9CB #CB40D9 #D9CB40
tetradic
#40D9CB #7F40D9 #D9404E #9AD940
square
#40D9CB #7F40D9 #D9404E #9AD940
split-complementary
#40D9CB #D9409A #D97F40
monochromatic
#1A847B #24B7AA #40D9CB #73E3D9 #A6EDE7

Accessibility & contrast

On white

1.75
#40D9CB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.01
#40D9CB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D9CB
12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40D9CB#FFFFFF#000000##000000
##40D9CB1.001.7512.0112.01
#FFFFFF1.751.0021.0021.00
#00000012.0121.001.001.00
##00000012.0121.001.001.00

Color blindness preview

Protanopia (red-blind)
#CECDCB
Deuteranopia (green-blind)
#B8BDCD
Tritanopia (blue-blind)
#00DED4
Achromatopsia (no color)
#C4C4C4

Design tokens & code

CSS
--color: #40d9cb;
/* rgb */ color: rgb(64, 217, 203);
/* oklch */ color: oklch(80.4% 0.126 186.0);
Tailwind
colors: {
  custom: {
    50: '#8ae5da',
    500: '#40d9cb',
    950: '#000000',
  },
}
SCSS
$custom: #40d9cb;
$custom-light: #8ae5da;
$custom-dark: #000000;
JSON
{
  "hex": "#40d9cb",
  "rgb": {
    "r": 64,
    "g": 217,
    "b": 203
  },
  "hsl": {
    "h": 174.51,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.80389,
    "c": 0.1263,
    "h": 186
  },
  "luminance": 0.55027
}

Semantic roles & 50–950 ramp

primary
#40D9CB
secondary
#8B323A
accent
#3E4EEA
background
#FCFEFE
surface
#F4FCFB
border
#CED5D4
text
#0D1614
muted
#7F8483

Preview Lab

Preview with #40D9CB

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

Preview Lab → · Contrast checker → · Palette generator →

#40D9CB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva