#42C9CB#42C9CB

#42C9CB is a light, moderate teal. Relative luminance 0.472; OKLCH L 76.6% C 0.114 H 196.5°. Best body text is #000000 at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#42C9CB
RGB	rgb(66, 201, 203)
HSL	hsl(181, 57%, 53%)
HSV	hsv(181, 67%, 80%)
CMYK	cmyk(67.5%, 1%, 0%, 20.4%)
CIE-LAB	lab(74.34, -34.79, -11.61)
CIE-LCH	lch(74.34, 36.68, 198.46°)
OKLab	oklab(76.57% -0.1089 -0.0322)
OKLCH	oklch(76.57% 0.114 196.5)
XYZ	xyz(33.9081, 47.2394, 63.8194)
Luminance	0.4724 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C9CB #CB4442

analogous

#42CB88 #42C9CB #4284CB

triadic

#42C9CB #CB42C9 #C9CB42

tetradic

#42C9CB #8842CB #CB4442 #84CB42

square

#42C9CB #8842CB #CB4442 #84CB42

split-complementary

#42C9CB #CB4284 #CB8842

monochromatic

#207273 #2DA1A3 #42C9CB #72D7D8 #A2E4E5

Accessibility & contrast

On white

2.01

#42C9CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.45

#42C9CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C9CB

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C9CB	#FFFFFF	#000000	##000000
##42C9CB	1.00	2.01	10.45	10.45
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.45	21.00	1.00	1.00
##000000	10.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCC0CB

Deuteranopia (green-blind)

#A7B0CC

Tritanopia (blue-blind)

#00D0C9

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #42c9cb;
/* rgb */ color: rgb(66, 201, 203);
/* oklch */ color: oklch(76.6% 0.114 196.5);

Tailwind

colors: {
  custom: {
    50: '#89dada',
    500: '#42c9cb',
    950: '#000000',
  },
}

SCSS

$custom: #42c9cb;
$custom-light: #89dada;
$custom-dark: #000000;

JSON

{
  "hex": "#42c9cb",
  "rgb": {
    "r": 66,
    "g": 201,
    "b": 203
  },
  "hsl": {
    "h": 180.876,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.76573,
    "c": 0.11362,
    "h": 196.5
  },
  "luminance": 0.47243
}

Semantic roles & 50–950 ramp

primary

#42C9CB

secondary

#D29897

accent

#4A48E0

background

#F9FDFD

surface

#F1FAFA

border

#CBD3D3

text

#0D1514

muted

#7E8383

Preview Lab

Preview with #42C9CB

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

Preview Lab → · Contrast checker → · Palette generator →