#42A8BE#42A8BE

#42A8BE is a light, moderate cyan. Relative luminance 0.329; OKLCH L 68.1% C 0.098 H 214.6°. Best body text is #000000 at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#42A8BE
RGB	rgb(66, 168, 190)
HSL	hsl(191, 49%, 50%)
HSV	hsv(191, 65%, 75%)
CMYK	cmyk(65.3%, 11.6%, 0%, 25.5%)
CIE-LAB	lab(64.06, -22.45, -19.98)
CIE-LCH	lch(64.06, 30.05, 221.67°)
OKLab	oklab(68.13% -0.0806 -0.0556)
OKLCH	oklch(68.13% 0.098 214.6)
XYZ	xyz(25.5398, 32.8785, 53.7054)
Luminance	0.3288 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A8BE #BE5842

analogous

#42BE96 #42A8BE #426ABE

triadic

#42A8BE #BE42A8 #A8BE42

tetradic

#42A8BE #9642BE #BE5842 #6ABE42

square

#42A8BE #9642BE #BE5842 #6ABE42

split-complementary

#42A8BE #BE426A #BE9642

monochromatic

#225863 #328091 #42A8BE #70BDCE #9DD2DD

Accessibility & contrast

On white

2.77

#42A8BE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.58

#42A8BE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A8BE

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A8BE	#FFFFFF	#000000	##000000
##42A8BE	1.00	2.77	7.58	7.58
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.58	21.00	1.00	1.00
##000000	7.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98A3BF

Deuteranopia (green-blind)

#8696BE

Tritanopia (blue-blind)

#00B0AF

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #42a8be;
/* rgb */ color: rgb(66, 168, 190);
/* oklch */ color: oklch(68.1% 0.098 214.6);

Tailwind

colors: {
  custom: {
    50: '#85c2d1',
    500: '#42a8be',
    950: '#000000',
  },
}

SCSS

$custom: #42a8be;
$custom-light: #85c2d1;
$custom-dark: #000000;

JSON

{
  "hex": "#42a8be",
  "rgb": {
    "r": 66,
    "g": 168,
    "b": 190
  },
  "hsl": {
    "h": 190.645,
    "s": 48.819,
    "l": 50.196
  },
  "oklch": {
    "l": 0.68134,
    "c": 0.09791,
    "h": 214.6
  },
  "luminance": 0.32881
}

Semantic roles & 50–950 ramp

primary

#42A8BE

secondary

#CA9C92

accent

#684FD8

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #42A8BE

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

Preview Lab → · Contrast checker → · Palette generator →