#42B7CB#42B7CB

#42B7CB is a light, moderate teal. Relative luminance 0.393; OKLCH L 72.3% C 0.106 H 211.1°. Best body text is #000000 at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#42B7CB
RGB	rgb(66, 183, 203)
HSL	hsl(189, 57%, 53%)
HSV	hsv(189, 67%, 80%)
CMYK	cmyk(67.5%, 9.9%, 0%, 20.4%)
CIE-LAB	lab(68.99, -26.08, -19.68)
CIE-LCH	lch(68.99, 32.67, 217.03°)
OKLab	oklab(72.25% -0.0908 -0.0547)
OKLCH	oklch(72.25% 0.106 211.1)
XYZ	xyz(29.9552, 39.3337, 62.5018)
Luminance	0.3934 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B7CB #CB5642

analogous

#42CB9A #42B7CB #4273CB

triadic

#42B7CB #CB42B7 #B7CB42

tetradic

#42B7CB #9A42CB #CB5642 #73CB42

square

#42B7CB #9A42CB #CB5642 #73CB42

split-complementary

#42B7CB #CB4273 #CB9A42

monochromatic

#206773 #2D92A3 #42B7CB #72C9D8 #A2DCE5

Accessibility & contrast

On white

2.37

#42B7CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.87

#42B7CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B7CB

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B7CB	#FFFFFF	#000000	##000000
##42B7CB	1.00	2.37	8.87	8.87
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.87	21.00	1.00	1.00
##000000	8.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A7B1CC

Deuteranopia (green-blind)

#93A2CB

Tritanopia (blue-blind)

#00C0BD

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #42b7cb;
/* rgb */ color: rgb(66, 183, 203);
/* oklch */ color: oklch(72.3% 0.106 211.1);

Tailwind

colors: {
  custom: {
    50: '#87cdda',
    500: '#42b7cb',
    950: '#000000',
  },
}

SCSS

$custom: #42b7cb;
$custom-light: #87cdda;
$custom-dark: #000000;

JSON

{
  "hex": "#42b7cb",
  "rgb": {
    "r": 66,
    "g": 183,
    "b": 203
  },
  "hsl": {
    "h": 188.759,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.72251,
    "c": 0.10601,
    "h": 211.1
  },
  "luminance": 0.39337
}

Semantic roles & 50–950 ramp

primary

#42B7CB

secondary

#D29F97

accent

#5E48E0

background

#F9FCFD

surface

#F1F9FA

border

#CBD2D3

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B7CB

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

Preview Lab → · Contrast checker → · Palette generator →