#428EC7#428EC7

#428EC7 is a light, moderate cyan. Relative luminance 0.246; OKLCH L 62.4% C 0.114 H 243.9°. Best body text is #000000 at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#428EC7
RGB	rgb(66, 142, 199)
HSL	hsl(206, 54%, 52%)
HSV	hsv(206, 67%, 78%)
CMYK	cmyk(66.8%, 28.6%, 0%, 22%)
CIE-LAB	lab(56.71, -5.36, -36.40)
CIE-LCH	lch(56.71, 36.79, 261.62°)
OKLab	oklab(62.39% -0.0504 -0.1027)
OKLCH	oklch(62.39% 0.114 243.9)
XYZ	xyz(22.2247, 24.6255, 57.6037)
Luminance	0.2463 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428EC7 #C77B42

analogous

#42C7BD #428EC7 #424CC7

triadic

#428EC7 #C7428E #8EC742

tetradic

#428EC7 #BD42C7 #C77B42 #4CC742

square

#428EC7 #BD42C7 #C77B42 #4CC742

split-complementary

#428EC7 #C7424C #C7BD42

monochromatic

#214D6E #2F6E9D #428EC7 #71AAD5 #A0C6E3

Accessibility & contrast

On white

3.54

#428EC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.93

#428EC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428EC7

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428EC7	#FFFFFF	#000000	##000000
##428EC7	1.00	3.54	5.93	5.93
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.93	21.00	1.00	1.00
##000000	5.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#748FCA

Deuteranopia (green-blind)

#6282C6

Tritanopia (blue-blind)

#009CA2

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #428ec7;
/* rgb */ color: rgb(66, 142, 199);
/* oklch */ color: oklch(62.4% 0.114 243.9);

Tailwind

colors: {
  custom: {
    50: '#84aed8',
    500: '#428ec7',
    950: '#000000',
  },
}

SCSS

$custom: #428ec7;
$custom-light: #84aed8;
$custom-dark: #000000;

JSON

{
  "hex": "#428ec7",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 199
  },
  "hsl": {
    "h": 205.714,
    "s": 54.286,
    "l": 51.961
  },
  "oklch": {
    "l": 0.62392,
    "c": 0.1144,
    "h": 243.9
  },
  "luminance": 0.24628
}

Semantic roles & 50–950 ramp

primary

#428EC7

secondary

#D0AE95

accent

#894ADE

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #428EC7

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

Preview Lab → · Contrast checker → · Palette generator →