#42D9DF#42D9DF

#42D9DF is a light, vivid teal. Relative luminance 0.561; OKLCH L 81.1% C 0.123 H 199.0°. Best body text is #000000 at 12.22:1 contrast (WCAG AA passes).

Color values

HEX	#42D9DF
RGB	rgb(66, 217, 223)
HSL	hsl(182, 71%, 57%)
HSV	hsv(182, 70%, 87%)
CMYK	cmyk(70.4%, 2.7%, 0%, 12.5%)
CIE-LAB	lab(79.67, -36.54, -14.38)
CIE-LCH	lch(79.67, 39.26, 201.48°)
OKLab	oklab(81.1% -0.1162 -0.0399)
OKLCH	oklch(81.1% 0.123 199)
XYZ	xyz(40.3729, 56.1069, 78.4997)
Luminance	0.5611 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D9DF #DF4842

analogous

#42DF97 #42D9DF #428BDF

triadic

#42D9DF #DF42D9 #D9DF42

tetradic

#42D9DF #9742DF #DF4842 #8BDF42

square

#42D9DF #9742DF #DF4842 #8BDF42

split-complementary

#42D9DF #DF428B #DF9742

monochromatic

#188A8E #21BDC3 #42D9DF #76E4E8 #ABEEF1

Accessibility & contrast

On white

1.72

#42D9DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.22

#42D9DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D9DF

12.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D9DF	#FFFFFF	#000000	##000000
##42D9DF	1.00	1.72	12.22	12.22
#FFFFFF	1.72	1.00	21.00	21.00
#000000	12.22	21.00	1.00	1.00
##000000	12.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CACFE0

Deuteranopia (green-blind)

#B3BEE0

Tritanopia (blue-blind)

#00E1DA

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #42d9df;
/* rgb */ color: rgb(66, 217, 223);
/* oklch */ color: oklch(81.1% 0.123 199.0);

Tailwind

colors: {
  custom: {
    50: '#8de5e9',
    500: '#42d9df',
    950: '#000000',
  },
}

SCSS

$custom: #42d9df;
$custom-light: #8de5e9;
$custom-dark: #000000;

JSON

{
  "hex": "#42d9df",
  "rgb": {
    "r": 66,
    "g": 217,
    "b": 223
  },
  "hsl": {
    "h": 182.293,
    "s": 71.041,
    "l": 56.667
  },
  "oklch": {
    "l": 0.81096,
    "c": 0.12289,
    "h": 199
  },
  "luminance": 0.56112
}

Semantic roles & 50–950 ramp

primary

#42D9DF

secondary

#943532

accent

#413AEE

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1616

muted

#7F8484

Preview Lab

Preview with #42D9DF

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

Preview Lab → · Contrast checker → · Palette generator →