#42B9BB#42B9BB

#42B9BB is a light, moderate teal. Relative luminance 0.394; OKLCH L 72.1% C 0.104 H 196.7°. Best body text is #000000 at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#42B9BB
RGB	rgb(66, 185, 187)
HSL	hsl(181, 48%, 50%)
HSV	hsv(181, 65%, 73%)
CMYK	cmyk(64.7%, 1.1%, 0%, 26.7%)
CIE-LAB	lab(69.07, -31.78, -10.77)
CIE-LCH	lch(69.07, 33.55, 198.72°)
OKLab	oklab(72.14% -0.0996 -0.0299)
OKLCH	oklch(72.14% 0.104 196.7)
XYZ	xyz(28.5614, 39.4409, 53.1117)
Luminance	0.3944 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B9BB #BB4442

analogous

#42BB81 #42B9BB #427CBB

triadic

#42B9BB #BB42B9 #B9BB42

tetradic

#42B9BB #8142BB #BB4442 #7CBB42

square

#42B9BB #8142BB #BB4442 #7CBB42

split-complementary

#42B9BB #BB427C #BB8142

monochromatic

#225F61 #328C8E #42B9BB #6ECACC #9CDBDC

Accessibility & contrast

On white

2.36

#42B9BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.89

#42B9BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B9BB

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B9BB	#FFFFFF	#000000	##000000
##42B9BB	1.00	2.36	8.89	8.89
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.89	21.00	1.00	1.00
##000000	8.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADB1BB

Deuteranopia (green-blind)

#9AA3BC

Tritanopia (blue-blind)

#00BFB9

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #42b9bb;
/* rgb */ color: rgb(66, 185, 187);
/* oklch */ color: oklch(72.1% 0.104 196.7);

Tailwind

colors: {
  custom: {
    50: '#86cecf',
    500: '#42b9bb',
    950: '#000000',
  },
}

SCSS

$custom: #42b9bb;
$custom-light: #86cecf;
$custom-dark: #000000;

JSON

{
  "hex": "#42b9bb",
  "rgb": {
    "r": 66,
    "g": 185,
    "b": 187
  },
  "hsl": {
    "h": 180.992,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.7214,
    "c": 0.10395,
    "h": 196.7
  },
  "luminance": 0.39444
}

Semantic roles & 50–950 ramp

primary

#42B9BB

secondary

#C89291

accent

#5350D7

background

#F8FCFC

surface

#F0F9F9

border

#CBD2D2

text

#0C1313

muted

#7D8282

Preview Lab

Preview with #42B9BB

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

Preview Lab → · Contrast checker → · Palette generator →