#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
RGB	rgb(66, 216, 223)
HSL	hsl(183, 71%, 57%)
HSV	hsv(183, 70%, 87%)
CMYK	cmyk(70.4%, 3.1%, 0%, 12.5%)
CIE-LAB	lab(79.38, -36.07, -14.82)
CIE-LCH	lch(79.38, 39.00, 202.33°)
OKLab	oklab(80.86% -0.1153 -0.0411)
OKLCH	oklch(80.86% 0.122 199.6)
XYZ	xyz(40.1160, 55.5930, 78.4140)
Luminance	0.5560 (WCAG relative)
Temperature	cool
Family	teal

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
##42D8DF	1.00	1.73	12.12	12.12
#FFFFFF	1.73	1.00	21.00	21.00
#000000	12.12	21.00	1.00	1.00
##000000	12.12	21.00	1.00	1.00

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 →