#42A4BD#42A4BD

#42A4BD is a light, moderate cyan. Relative luminance 0.314; OKLCH L 67.1% C 0.097 H 217.7°. Best body text is #000000 at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#42A4BD
RGB	rgb(66, 164, 189)
HSL	hsl(192, 48%, 50%)
HSV	hsv(192, 65%, 74%)
CMYK	cmyk(65.1%, 13.2%, 0%, 25.9%)
CIE-LAB	lab(62.83, -20.69, -21.31)
CIE-LCH	lch(62.83, 29.70, 225.85°)
OKLab	oklab(67.13% -0.0768 -0.0593)
OKLCH	oklch(67.13% 0.097 217.7)
XYZ	xyz(24.7038, 31.3806, 52.8894)
Luminance	0.3138 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A4BD #BD5B42

analogous

#42BD98 #42A4BD #4267BD

triadic

#42A4BD #BD42A4 #A4BD42

tetradic

#42A4BD #9842BD #BD5B42 #67BD42

square

#42A4BD #9842BD #BD5B42 #67BD42

split-complementary

#42A4BD #BD4267 #BD9842

monochromatic

#225562 #327D90 #42A4BD #6FBACD #9DD0DD

Accessibility & contrast

On white

2.89

#42A4BD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.28

#42A4BD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A4BD

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A4BD	#FFFFFF	#000000	##000000
##42A4BD	1.00	2.89	7.28	7.28
#FFFFFF	2.89	1.00	21.00	21.00
#000000	7.28	21.00	1.00	1.00
##000000	7.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#949FBE

Deuteranopia (green-blind)

#8292BD

Tritanopia (blue-blind)

#00ADAC

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #42a4bd;
/* rgb */ color: rgb(66, 164, 189);
/* oklch */ color: oklch(67.1% 0.097 217.7);

Tailwind

colors: {
  custom: {
    50: '#84bfd1',
    500: '#42a4bd',
    950: '#000000',
  },
}

SCSS

$custom: #42a4bd;
$custom-light: #84bfd1;
$custom-dark: #000000;

JSON

{
  "hex": "#42a4bd",
  "rgb": {
    "r": 66,
    "g": 164,
    "b": 189
  },
  "hsl": {
    "h": 192.195,
    "s": 48.235,
    "l": 50
  },
  "oklch": {
    "l": 0.67131,
    "c": 0.09705,
    "h": 217.7
  },
  "luminance": 0.31383
}

Semantic roles & 50–950 ramp

primary

#42A4BD

secondary

#C99D92

accent

#6C50D8

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #42A4BD

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

Preview Lab → · Contrast checker → · Palette generator →