#428DC7#428DC7

#428DC7 is a light, moderate cyan. Relative luminance 0.243; OKLCH L 62.2% C 0.115 H 244.6°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#428DC7
RGB	rgb(66, 141, 199)
HSL	hsl(206, 54%, 52%)
HSV	hsv(206, 67%, 78%)
CMYK	cmyk(66.8%, 29.1%, 0%, 22%)
CIE-LAB	lab(56.42, -4.79, -36.85)
CIE-LCH	lch(56.42, 37.16, 262.60°)
OKLab	oklab(62.16% -0.0494 -0.104)
OKLCH	oklch(62.16% 0.115 244.6)
XYZ	xyz(22.0765, 24.3292, 57.5543)
Luminance	0.2433 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428DC7 #C77C42

analogous

#42C7BE #428DC7 #424BC7

triadic

#428DC7 #C7428D #8DC742

tetradic

#428DC7 #BE42C7 #C77C42 #4BC742

square

#428DC7 #BE42C7 #C77C42 #4BC742

split-complementary

#428DC7 #C7424B #C7BE42

monochromatic

#214C6E #2F6D9D #428DC7 #71A9D5 #A0C6E3

Accessibility & contrast

On white

3.58

#428DC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#428DC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428DC7

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428DC7	#FFFFFF	#000000	##000000
##428DC7	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#738ECA

Deuteranopia (green-blind)

#6182C6

Tritanopia (blue-blind)

#009BA1

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #428dc7;
/* rgb */ color: rgb(66, 141, 199);
/* oklch */ color: oklch(62.2% 0.115 244.6);

Tailwind

colors: {
  custom: {
    50: '#84aed8',
    500: '#428dc7',
    950: '#000000',
  },
}

SCSS

$custom: #428dc7;
$custom-light: #84aed8;
$custom-dark: #000000;

JSON

{
  "hex": "#428dc7",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 199
  },
  "hsl": {
    "h": 206.165,
    "s": 54.286,
    "l": 51.961
  },
  "oklch": {
    "l": 0.62161,
    "c": 0.11516,
    "h": 244.6
  },
  "luminance": 0.24332
}

Semantic roles & 50–950 ramp

primary

#428DC7

secondary

#D0AF95

accent

#8A4ADE

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #428DC7

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

Preview Lab → · Contrast checker → · Palette generator →