#428AC7#428AC7

#428AC7 is a mid, moderate cyan. Relative luminance 0.235; OKLCH L 61.5% C 0.118 H 246.8°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#428AC7
RGB	rgb(66, 138, 199)
HSL	hsl(208, 54%, 52%)
HSV	hsv(208, 67%, 78%)
CMYK	cmyk(66.8%, 30.7%, 0%, 22%)
CIE-LAB	lab(55.54, -3.05, -38.23)
CIE-LCH	lch(55.54, 38.35, 265.44°)
OKLab	oklab(61.47% -0.0463 -0.1081)
OKLCH	oklch(61.47% 0.118 246.8)
XYZ	xyz(21.6402, 23.4565, 57.4088)
Luminance	0.2346 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428AC7 #C77F42

analogous

#42C7C2 #428AC7 #4248C7

triadic

#428AC7 #C7428A #8AC742

tetradic

#428AC7 #C242C7 #C77F42 #48C742

square

#428AC7 #C242C7 #C77F42 #48C742

split-complementary

#428AC7 #C74248 #C7C242

monochromatic

#214B6E #2F6A9D #428AC7 #71A7D5 #A0C4E3

Accessibility & contrast

On white

3.69

#428AC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#428AC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428AC7

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428AC7	#FFFFFF	#000000	##000000
##428AC7	1.00	3.69	5.69	5.69
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.69	21.00	1.00	1.00
##000000	5.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F8CCA

Deuteranopia (green-blind)

#5D7FC6

Tritanopia (blue-blind)

#0099A0

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #428ac7;
/* rgb */ color: rgb(66, 138, 199);
/* oklch */ color: oklch(61.5% 0.118 246.8);

Tailwind

colors: {
  custom: {
    50: '#84abd8',
    500: '#428ac7',
    950: '#000000',
  },
}

SCSS

$custom: #428ac7;
$custom-light: #84abd8;
$custom-dark: #000000;

JSON

{
  "hex": "#428ac7",
  "rgb": {
    "r": 66,
    "g": 138,
    "b": 199
  },
  "hsl": {
    "h": 207.519,
    "s": 54.286,
    "l": 51.961
  },
  "oklch": {
    "l": 0.61469,
    "c": 0.11757,
    "h": 246.8
  },
  "luminance": 0.23459
}

Semantic roles & 50–950 ramp

primary

#428AC7

secondary

#D0B095

accent

#8E4ADE

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #428AC7

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

Preview Lab → · Contrast checker → · Palette generator →