#42D5BF#42D5BF

#42D5BF is a light, vivid teal. Relative luminance 0.525; OKLCH L 79.1% C 0.126 H 180.8°. Best body text is #000000 at 11.50:1 contrast (WCAG AA passes).

Color values

HEX#42D5BF
RGBrgb(66, 213, 191)
HSLhsl(171, 64%, 55%)
HSVhsv(171, 69%, 84%)
CMYKcmyk(69%, 0%, 10.3%, 16.5%)
CIE-LABlab(77.58, -43.49, -0.36)
CIE-LCHlch(77.58, 43.49, 180.47°)
OKLaboklab(79.09% -0.1262 -0.0017)
OKLCHoklch(79.09% 0.126 180.8)
XYZxyz(35.4404, 52.5043, 57.5466)
Luminance0.5251 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42D5BF #D54258
analogous
#42D575 #42D5BF #42A2D5
triadic
#42D5BF #BF42D5 #D5BF42
tetradic
#42D5BF #7542D5 #D54258 #A2D542
square
#42D5BF #7542D5 #D54258 #A2D542
split-complementary
#42D5BF #D542A2 #D57542
monochromatic
#1C8071 #28B29D #42D5BF #74E0D0 #A6EBE1

Accessibility & contrast

On white

1.83
#42D5BF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.50
#42D5BF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D5BF
11.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42D5BF#FFFFFF#000000##000000
##42D5BF1.001.8311.5011.50
#FFFFFF1.831.0021.0021.00
#00000011.5021.001.001.00
##00000011.5021.001.001.00

Color blindness preview

Protanopia (red-blind)
#CCC9BE
Deuteranopia (green-blind)
#B7B9C1
Tritanopia (blue-blind)
#00D9CE
Achromatopsia (no color)
#C0C0C0

Design tokens & code

CSS
--color: #42d5bf;
/* rgb */ color: rgb(66, 213, 191);
/* oklch */ color: oklch(79.1% 0.126 180.8);
Tailwind
colors: {
  custom: {
    50: '#8ae2d2',
    500: '#42d5bf',
    950: '#000000',
  },
}
SCSS
$custom: #42d5bf;
$custom-light: #8ae2d2;
$custom-dark: #000000;
JSON
{
  "hex": "#42d5bf",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 191
  },
  "hsl": {
    "h": 171.02,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.79094,
    "c": 0.12622,
    "h": 180.8
  },
  "luminance": 0.52508
}

Semantic roles & 50–950 ramp

primary
#42D5BF
secondary
#873440
accent
#415AE7
background
#FCFEFE
surface
#F4FCFB
border
#CED5D4
text
#0D1514
muted
#7F8483

Preview Lab

Preview with #42D5BF

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

Preview Lab → · Contrast checker → · Palette generator →

#42D5BF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva