#42A7BE#42A7BE

#42A7BE is a light, moderate cyan. Relative luminance 0.325; OKLCH L 67.9% C 0.098 H 215.5°. Best body text is #000000 at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#42A7BE
RGB	rgb(66, 167, 190)
HSL	hsl(191, 49%, 50%)
HSV	hsv(191, 65%, 75%)
CMYK	cmyk(65.3%, 12.1%, 0%, 25.5%)
CIE-LAB	lab(63.76, -21.93, -20.44)
CIE-LCH	lch(63.76, 29.98, 222.98°)
OKLab	oklab(67.89% -0.0796 -0.0568)
OKLCH	oklch(67.89% 0.098 215.5)
XYZ	xyz(25.3559, 32.5107, 53.6441)
Luminance	0.3251 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A7BE #BE5942

analogous

#42BE97 #42A7BE #4269BE

triadic

#42A7BE #BE42A7 #A7BE42

tetradic

#42A7BE #9742BE #BE5942 #69BE42

square

#42A7BE #9742BE #BE5942 #69BE42

split-complementary

#42A7BE #BE4269 #BE9742

monochromatic

#225763 #327F91 #42A7BE #70BCCE #9DD1DD

Accessibility & contrast

On white

2.80

#42A7BE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.50

#42A7BE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A7BE

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A7BE	#FFFFFF	#000000	##000000
##42A7BE	1.00	2.80	7.50	7.50
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.50	21.00	1.00	1.00
##000000	7.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97A2BF

Deuteranopia (green-blind)

#8595BE

Tritanopia (blue-blind)

#00B0AE

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #42a7be;
/* rgb */ color: rgb(66, 167, 190);
/* oklch */ color: oklch(67.9% 0.098 215.5);

Tailwind

colors: {
  custom: {
    50: '#85c1d1',
    500: '#42a7be',
    950: '#000000',
  },
}

SCSS

$custom: #42a7be;
$custom-light: #85c1d1;
$custom-dark: #000000;

JSON

{
  "hex": "#42a7be",
  "rgb": {
    "r": 66,
    "g": 167,
    "b": 190
  },
  "hsl": {
    "h": 191.129,
    "s": 48.819,
    "l": 50.196
  },
  "oklch": {
    "l": 0.67893,
    "c": 0.09779,
    "h": 215.5
  },
  "luminance": 0.32513
}

Semantic roles & 50–950 ramp

primary

#42A7BE

secondary

#CA9C92

accent

#694FD8

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #42A7BE

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

Preview Lab → · Contrast checker → · Palette generator →