#42B4BB#42B4BB

#42B4BB is a light, moderate teal. Relative luminance 0.374; OKLCH L 70.9% C 0.101 H 200.9°. Best body text is #000000 at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#42B4BB
RGB	rgb(66, 180, 187)
HSL	hsl(183, 48%, 50%)
HSV	hsv(183, 65%, 73%)
CMYK	cmyk(64.7%, 3.7%, 0%, 26.7%)
CIE-LAB	lab(67.57, -29.36, -13.02)
CIE-LCH	lch(67.57, 32.12, 203.92°)
OKLab	oklab(70.92% -0.0944 -0.0361)
OKLCH	oklch(70.92% 0.101 200.9)
XYZ	xyz(27.5338, 37.3856, 52.7691)
Luminance	0.3739 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B4BB #BB4942

analogous

#42BB86 #42B4BB #4278BB

triadic

#42B4BB #BB42B4 #B4BB42

tetradic

#42B4BB #8642BB #BB4942 #78BB42

square

#42B4BB #8642BB #BB4942 #78BB42

split-complementary

#42B4BB #BB4278 #BB8642

monochromatic

#225D61 #32888E #42B4BB #6EC7CC #9CD8DC

Accessibility & contrast

On white

2.48

#42B4BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.48

#42B4BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B4BB

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B4BB	#FFFFFF	#000000	##000000
##42B4BB	1.00	2.48	8.48	8.48
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.48	21.00	1.00	1.00
##000000	8.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A7ACBC

Deuteranopia (green-blind)

#959FBC

Tritanopia (blue-blind)

#00BAB6

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #42b4bb;
/* rgb */ color: rgb(66, 180, 187);
/* oklch */ color: oklch(70.9% 0.101 200.9);

Tailwind

colors: {
  custom: {
    50: '#85cbcf',
    500: '#42b4bb',
    950: '#000000',
  },
}

SCSS

$custom: #42b4bb;
$custom-light: #85cbcf;
$custom-dark: #000000;

JSON

{
  "hex": "#42b4bb",
  "rgb": {
    "r": 66,
    "g": 180,
    "b": 187
  },
  "hsl": {
    "h": 183.471,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.70924,
    "c": 0.10104,
    "h": 200.9
  },
  "luminance": 0.37389
}

Semantic roles & 50–950 ramp

primary

#42B4BB

secondary

#C89491

accent

#5850D7

background

#F8FCFC

surface

#F0F8F9

border

#CBD1D2

text

#0C1313

muted

#7D8282

Preview Lab

Preview with #42B4BB

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

Preview Lab → · Contrast checker → · Palette generator →