#42C8CB#42C8CB

#42C8CB is a light, moderate teal. Relative luminance 0.468; OKLCH L 76.3% C 0.113 H 197.2°. Best body text is #000000 at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#42C8CB
RGB	rgb(66, 200, 203)
HSL	hsl(181, 57%, 53%)
HSV	hsv(181, 67%, 80%)
CMYK	cmyk(67.5%, 1.5%, 0%, 20.4%)
CIE-LAB	lab(74.05, -34.32, -12.06)
CIE-LCH	lch(74.05, 36.38, 199.36°)
OKLab	oklab(76.33% -0.1079 -0.0335)
OKLCH	oklch(76.33% 0.113 197.2)
XYZ	xyz(33.6757, 46.7747, 63.7420)
Luminance	0.4678 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C8CB #CB4542

analogous

#42CB8A #42C8CB #4283CB

triadic

#42C8CB #CB42C8 #C8CB42

tetradic

#42C8CB #8A42CB #CB4542 #83CB42

square

#42C8CB #8A42CB #CB4542 #83CB42

split-complementary

#42C8CB #CB4283 #CB8A42

monochromatic

#207173 #2DA0A3 #42C8CB #72D6D8 #A2E4E5

Accessibility & contrast

On white

2.03

#42C8CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.36

#42C8CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C8CB

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C8CB	#FFFFFF	#000000	##000000
##42C8CB	1.00	2.03	10.36	10.36
#FFFFFF	2.03	1.00	21.00	21.00
#000000	10.36	21.00	1.00	1.00
##000000	10.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BABFCB

Deuteranopia (green-blind)

#A6B0CC

Tritanopia (blue-blind)

#00CFC9

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #42c8cb;
/* rgb */ color: rgb(66, 200, 203);
/* oklch */ color: oklch(76.3% 0.113 197.2);

Tailwind

colors: {
  custom: {
    50: '#89d9da',
    500: '#42c8cb',
    950: '#000000',
  },
}

SCSS

$custom: #42c8cb;
$custom-light: #89d9da;
$custom-dark: #000000;

JSON

{
  "hex": "#42c8cb",
  "rgb": {
    "r": 66,
    "g": 200,
    "b": 203
  },
  "hsl": {
    "h": 181.314,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.76333,
    "c": 0.11302,
    "h": 197.2
  },
  "luminance": 0.46779
}

Semantic roles & 50–950 ramp

primary

#42C8CB

secondary

#D29897

accent

#4B48E0

background

#F9FDFD

surface

#F1FAFA

border

#CBD3D3

text

#0D1414

muted

#7E8383

Preview Lab

Preview with #42C8CB

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

Preview Lab → · Contrast checker → · Palette generator →