#42A7BD#42A7BD

#42A7BD is a light, moderate cyan. Relative luminance 0.325; OKLCH L 67.9% C 0.097 H 214.7°. Best body text is #000000 at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#42A7BD
RGB	rgb(66, 167, 189)
HSL	hsl(191, 48%, 50%)
HSV	hsv(191, 65%, 74%)
CMYK	cmyk(65.1%, 11.6%, 0%, 25.9%)
CIE-LAB	lab(63.73, -22.24, -19.94)
CIE-LCH	lch(63.73, 29.87, 221.87°)
OKLab	oklab(67.85% -0.08 -0.0554)
OKLCH	oklch(67.85% 0.097 214.7)
XYZ	xyz(25.2470, 32.4671, 53.0705)
Luminance	0.3247 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A7BD #BD5842

analogous

#42BD96 #42A7BD #4269BD

triadic

#42A7BD #BD42A7 #A7BD42

tetradic

#42A7BD #9642BD #BD5842 #69BD42

square

#42A7BD #9642BD #BD5842 #69BD42

split-complementary

#42A7BD #BD4269 #BD9642

monochromatic

#225762 #327F90 #42A7BD #6FBCCD #9DD1DD

Accessibility & contrast

On white

2.80

#42A7BD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.49

#42A7BD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A7BD

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A7BD	#FFFFFF	#000000	##000000
##42A7BD	1.00	2.80	7.49	7.49
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.49	21.00	1.00	1.00
##000000	7.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97A2BE

Deuteranopia (green-blind)

#8695BD

Tritanopia (blue-blind)

#00AFAE

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #42a7bd;
/* rgb */ color: rgb(66, 167, 189);
/* oklch */ color: oklch(67.9% 0.097 214.7);

Tailwind

colors: {
  custom: {
    50: '#84c1d1',
    500: '#42a7bd',
    950: '#000000',
  },
}

SCSS

$custom: #42a7bd;
$custom-light: #84c1d1;
$custom-dark: #000000;

JSON

{
  "hex": "#42a7bd",
  "rgb": {
    "r": 66,
    "g": 167,
    "b": 189
  },
  "hsl": {
    "h": 190.732,
    "s": 48.235,
    "l": 50
  },
  "oklch": {
    "l": 0.67853,
    "c": 0.0973,
    "h": 214.7
  },
  "luminance": 0.3247
}

Semantic roles & 50–950 ramp

primary

#42A7BD

secondary

#C99C92

accent

#6850D8

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #42A7BD

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

Preview Lab → · Contrast checker → · Palette generator →