#428DC8#428DC8

#428DC8 is a light, moderate cyan. Relative luminance 0.244; OKLCH L 62.2% C 0.116 H 245.1°. Best body text is #000000 at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#428DC8
RGB	rgb(66, 141, 200)
HSL	hsl(206, 55%, 52%)
HSV	hsv(206, 67%, 78%)
CMYK	cmyk(67%, 29.5%, 0%, 21.6%)
CIE-LAB	lab(56.46, -4.45, -37.35)
CIE-LCH	lch(56.46, 37.61, 263.21°)
OKLab	oklab(62.21% -0.0491 -0.1055)
OKLCH	oklch(62.21% 0.116 245.1)
XYZ	xyz(22.1930, 24.3758, 58.1678)
Luminance	0.2438 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428DC8 #C87D42

analogous

#42C8C0 #428DC8 #424AC8

triadic

#428DC8 #C8428D #8DC842

tetradic

#428DC8 #C042C8 #C87D42 #4AC842

square

#428DC8 #C042C8 #C87D42 #4AC842

split-complementary

#428DC8 #C8424A #C8C042

monochromatic

#204D6F #2E6D9F #428DC8 #71AAD6 #A1C6E4

Accessibility & contrast

On white

3.57

#428DC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.88

#428DC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428DC8

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428DC8	#FFFFFF	#000000	##000000
##428DC8	1.00	3.57	5.88	5.88
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.88	21.00	1.00	1.00
##000000	5.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#738FCB

Deuteranopia (green-blind)

#6082C7

Tritanopia (blue-blind)

#009BA2

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #428dc8;
/* rgb */ color: rgb(66, 141, 200);
/* oklch */ color: oklch(62.2% 0.116 245.1);

Tailwind

colors: {
  custom: {
    50: '#84aed9',
    500: '#428dc8',
    950: '#000000',
  },
}

SCSS

$custom: #428dc8;
$custom-light: #84aed9;
$custom-dark: #000000;

JSON

{
  "hex": "#428dc8",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 200
  },
  "hsl": {
    "h": 206.418,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.62212,
    "c": 0.11632,
    "h": 245.1
  },
  "luminance": 0.24378
}

Semantic roles & 50–950 ramp

primary

#428DC8

secondary

#D0AF96

accent

#8B4ADE

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #428DC8

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

Preview Lab → · Contrast checker → · Palette generator →