#42B6CB#42B6CB

#42B6CB is a light, moderate teal. Relative luminance 0.389; OKLCH L 72.0% C 0.106 H 211.9°. Best body text is #000000 at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#42B6CB
RGB	rgb(66, 182, 203)
HSL	hsl(189, 57%, 53%)
HSV	hsv(189, 67%, 80%)
CMYK	cmyk(67.5%, 10.3%, 0%, 20.4%)
CIE-LAB	lab(68.70, -25.58, -20.13)
CIE-LCH	lch(68.70, 32.55, 218.20°)
OKLab	oklab(72.01% -0.0898 -0.056)
OKLCH	oklch(72.01% 0.106 211.9)
XYZ	xyz(29.7497, 38.9226, 62.4333)
Luminance	0.3893 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B6CB #CB5742

analogous

#42CB9B #42B6CB #4272CB

triadic

#42B6CB #CB42B6 #B6CB42

tetradic

#42B6CB #9B42CB #CB5742 #72CB42

square

#42B6CB #9B42CB #CB5742 #72CB42

split-complementary

#42B6CB #CB4272 #CB9B42

monochromatic

#206673 #2D91A3 #42B6CB #72C9D8 #A2DBE5

Accessibility & contrast

On white

2.39

#42B6CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.79

#42B6CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B6CB

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B6CB	#FFFFFF	#000000	##000000
##42B6CB	1.00	2.39	8.79	8.79
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.79	21.00	1.00	1.00
##000000	8.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B0CC

Deuteranopia (green-blind)

#92A1CB

Tritanopia (blue-blind)

#00BFBC

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #42b6cb;
/* rgb */ color: rgb(66, 182, 203);
/* oklch */ color: oklch(72.0% 0.106 211.9);

Tailwind

colors: {
  custom: {
    50: '#87ccda',
    500: '#42b6cb',
    950: '#000000',
  },
}

SCSS

$custom: #42b6cb;
$custom-light: #87ccda;
$custom-dark: #000000;

JSON

{
  "hex": "#42b6cb",
  "rgb": {
    "r": 66,
    "g": 182,
    "b": 203
  },
  "hsl": {
    "h": 189.197,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.72011,
    "c": 0.10581,
    "h": 211.9
  },
  "luminance": 0.38926
}

Semantic roles & 50–950 ramp

primary

#42B6CB

secondary

#D2A097

accent

#5F48E0

background

#F9FCFD

surface

#F1F8FA

border

#CBD1D3

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B6CB

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

Preview Lab → · Contrast checker → · Palette generator →