#42A4BE#42A4BE

#42A4BE is a light, moderate cyan. Relative luminance 0.314; OKLCH L 67.2% C 0.098 H 218.5°. Best body text is #000000 at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#42A4BE
RGB	rgb(66, 164, 190)
HSL	hsl(193, 49%, 50%)
HSV	hsv(193, 65%, 75%)
CMYK	cmyk(65.3%, 13.7%, 0%, 25.5%)
CIE-LAB	lab(62.86, -20.37, -21.81)
CIE-LCH	lch(62.86, 29.85, 226.95°)
OKLab	oklab(67.17% -0.0764 -0.0607)
OKLCH	oklch(67.17% 0.098 218.5)
XYZ	xyz(24.8127, 31.4242, 53.4630)
Luminance	0.3143 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A4BE #BE5C42

analogous

#42BE9A #42A4BE #4266BE

triadic

#42A4BE #BE42A4 #A4BE42

tetradic

#42A4BE #9A42BE #BE5C42 #66BE42

square

#42A4BE #9A42BE #BE5C42 #66BE42

split-complementary

#42A4BE #BE4266 #BE9A42

monochromatic

#225663 #327D91 #42A4BE #70BACE #9DD0DD

Accessibility & contrast

On white

2.88

#42A4BE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.29

#42A4BE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A4BE

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A4BE	#FFFFFF	#000000	##000000
##42A4BE	1.00	2.88	7.29	7.29
#FFFFFF	2.88	1.00	21.00	21.00
#000000	7.29	21.00	1.00	1.00
##000000	7.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93A0BF

Deuteranopia (green-blind)

#8292BE

Tritanopia (blue-blind)

#00ADAC

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #42a4be;
/* rgb */ color: rgb(66, 164, 190);
/* oklch */ color: oklch(67.2% 0.098 218.5);

Tailwind

colors: {
  custom: {
    50: '#84bfd1',
    500: '#42a4be',
    950: '#000000',
  },
}

SCSS

$custom: #42a4be;
$custom-light: #84bfd1;
$custom-dark: #000000;

JSON

{
  "hex": "#42a4be",
  "rgb": {
    "r": 66,
    "g": 164,
    "b": 190
  },
  "hsl": {
    "h": 192.581,
    "s": 48.819,
    "l": 50.196
  },
  "oklch": {
    "l": 0.67172,
    "c": 0.09762,
    "h": 218.5
  },
  "luminance": 0.31427
}

Semantic roles & 50–950 ramp

primary

#42A4BE

secondary

#CA9E92

accent

#6C4FD8

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #42A4BE

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

Preview Lab → · Contrast checker → · Palette generator →