#42B5BD#42B5BD

#42B5BD is a light, moderate teal. Relative luminance 0.379; OKLCH L 71.2% C 0.102 H 201.7°. Best body text is #000000 at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#42B5BD
RGB	rgb(66, 181, 189)
HSL	hsl(184, 48%, 50%)
HSV	hsv(184, 65%, 74%)
CMYK	cmyk(65.1%, 4.2%, 0%, 25.9%)
CIE-LAB	lab(67.93, -29.26, -13.58)
CIE-LCH	lch(67.93, 32.26, 204.89°)
OKLab	oklab(71.24% -0.0946 -0.0376)
OKLCH	oklch(71.24% 0.102 201.7)
XYZ	xyz(27.9520, 37.8770, 53.9721)
Luminance	0.3788 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B5BD #BD4A42

analogous

#42BD87 #42B5BD #4278BD

triadic

#42B5BD #BD42B5 #B5BD42

tetradic

#42B5BD #8742BD #BD4A42 #78BD42

square

#42B5BD #8742BD #BD4A42 #78BD42

split-complementary

#42B5BD #BD4278 #BD8742

monochromatic

#225E62 #328A90 #42B5BD #6FC7CD #9DD9DD

Accessibility & contrast

On white

2.45

#42B5BD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.58

#42B5BD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B5BD

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B5BD	#FFFFFF	#000000	##000000
##42B5BD	1.00	2.45	8.58	8.58
#FFFFFF	2.45	1.00	21.00	21.00
#000000	8.58	21.00	1.00	1.00
##000000	8.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8ADBE

Deuteranopia (green-blind)

#95A0BE

Tritanopia (blue-blind)

#00BCB7

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #42b5bd;
/* rgb */ color: rgb(66, 181, 189);
/* oklch */ color: oklch(71.2% 0.102 201.7);

Tailwind

colors: {
  custom: {
    50: '#86cbd0',
    500: '#42b5bd',
    950: '#000000',
  },
}

SCSS

$custom: #42b5bd;
$custom-light: #86cbd0;
$custom-dark: #000000;

JSON

{
  "hex": "#42b5bd",
  "rgb": {
    "r": 66,
    "g": 181,
    "b": 189
  },
  "hsl": {
    "h": 183.902,
    "s": 48.235,
    "l": 50
  },
  "oklch": {
    "l": 0.7124,
    "c": 0.10178,
    "h": 201.7
  },
  "luminance": 0.3788
}

Semantic roles & 50–950 ramp

primary

#42B5BD

secondary

#C99592

accent

#5950D8

background

#F8FCFC

surface

#F0F8F9

border

#CBD1D2

text

#0C1314

muted

#7D8282

Preview Lab

Preview with #42B5BD

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

Preview Lab → · Contrast checker → · Palette generator →