#42D8DF#42D8DF

#42D8DF is a light, vivid teal. Relative luminance 0.556; OKLCH L 80.9% C 0.122 H 199.6°. Best body text is #000000 at 12.12:1 contrast (WCAG AA passes).

Color values

HEX#42D8DF
RGBrgb(66, 216, 223)
HSLhsl(183, 71%, 57%)
HSVhsv(183, 70%, 87%)
CMYKcmyk(70.4%, 3.1%, 0%, 12.5%)
CIE-LABlab(79.38, -36.07, -14.82)
CIE-LCHlch(79.38, 39.00, 202.33°)
OKLaboklab(80.86% -0.1153 -0.0411)
OKLCHoklch(80.86% 0.122 199.6)
XYZxyz(40.1160, 55.5930, 78.4140)
Luminance0.5560 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42D8DF #DF4942
analogous
#42DF98 #42D8DF #428ADF
triadic
#42D8DF #DF42D8 #D8DF42
tetradic
#42D8DF #9842DF #DF4942 #8ADF42
square
#42D8DF #9842DF #DF4942 #8ADF42
split-complementary
#42D8DF #DF428A #DF9842
monochromatic
#18898E #21BCC3 #42D8DF #76E3E8 #ABEEF1

Accessibility & contrast

On white

1.73
#42D8DF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.12
#42D8DF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D8DF
12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42D8DF#FFFFFF#000000##000000
##42D8DF1.001.7312.1212.12
#FFFFFF1.731.0021.0021.00
#00000012.1221.001.001.00
##00000012.1221.001.001.00

Color blindness preview

Protanopia (red-blind)
#C8CEE0
Deuteranopia (green-blind)
#B2BEE0
Tritanopia (blue-blind)
#00E0DA
Achromatopsia (no color)
#C5C5C5

Design tokens & code

CSS
--color: #42d8df;
/* rgb */ color: rgb(66, 216, 223);
/* oklch */ color: oklch(80.9% 0.122 199.6);
Tailwind
colors: {
  custom: {
    50: '#8de4e9',
    500: '#42d8df',
    950: '#000000',
  },
}
SCSS
$custom: #42d8df;
$custom-light: #8de4e9;
$custom-dark: #000000;
JSON
{
  "hex": "#42d8df",
  "rgb": {
    "r": 66,
    "g": 216,
    "b": 223
  },
  "hsl": {
    "h": 182.675,
    "s": 71.041,
    "l": 56.667
  },
  "oklch": {
    "l": 0.80859,
    "c": 0.12238,
    "h": 199.6
  },
  "luminance": 0.55598
}

Semantic roles & 50–950 ramp

primary
#42D8DF
secondary
#943632
accent
#423AEE
background
#FCFEFE
surface
#F5FCFC
border
#CFD5D5
text
#0E1516
muted
#7F8484

Preview Lab

Preview with #42D8DF

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

Preview Lab → · Contrast checker → · Palette generator →

#42D8DF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva