#428AD2#428AD2

#428AD2 is a light, vivid cyan. Relative luminance 0.240; OKLCH L 62.1% C 0.131 H 250.8°. Best body text is #000000 at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#428AD2
RGB	rgb(66, 138, 210)
HSL	hsl(210, 62%, 54%)
HSV	hsv(210, 69%, 82%)
CMYK	cmyk(68.6%, 34.3%, 0%, 17.6%)
CIE-LAB	lab(56.07, 0.75, -43.60)
CIE-LCH	lch(56.07, 43.61, 270.99°)
OKLab	oklab(62.06% -0.0432 -0.1237)
OKLCH	oklch(62.06% 0.131 250.8)
XYZ	xyz(22.9638, 23.9859, 64.3798)
Luminance	0.2399 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428AD2 #D28A42

analogous

#42D2D2 #428AD2 #4242D2

triadic

#428AD2 #D2428A #8AD242

tetradic

#428AD2 #D242D2 #D28A42 #42D242

square

#428AD2 #D242D2 #D28A42 #42D242

split-complementary

#428AD2 #D24242 #D2D242

monochromatic

#1E4D7C #296BAD #428AD2 #73A9DE #A5C7EA

Accessibility & contrast

On white

3.62

#428AD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.80

#428AD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428AD2

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428AD2	#FFFFFF	#000000	##000000
##428AD2	1.00	3.62	5.80	5.80
#FFFFFF	3.62	1.00	21.00	21.00
#000000	5.80	21.00	1.00	1.00
##000000	5.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A8ED5

Deuteranopia (green-blind)

#5580D1

Tritanopia (blue-blind)

#009BA4

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #428ad2;
/* rgb */ color: rgb(66, 138, 210);
/* oklch */ color: oklch(62.1% 0.131 250.8);

Tailwind

colors: {
  custom: {
    50: '#86abe0',
    500: '#428ad2',
    950: '#000000',
  },
}

SCSS

$custom: #428ad2;
$custom-light: #86abe0;
$custom-dark: #000000;

JSON

{
  "hex": "#428ad2",
  "rgb": {
    "r": 66,
    "g": 138,
    "b": 210
  },
  "hsl": {
    "h": 210,
    "s": 61.538,
    "l": 54.118
  },
  "oklch": {
    "l": 0.62064,
    "c": 0.13105,
    "h": 250.8
  },
  "luminance": 0.23988
}

Semantic roles & 50–950 ramp

primary

#428AD2

secondary

#D7B899

accent

#9443E5

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #428AD2

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

Preview Lab → · Contrast checker → · Palette generator →