#428CA7#428CA7

#428CA7 is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.4% C 0.084 H 224.8°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#428CA7
RGB	rgb(66, 140, 167)
HSL	hsl(196, 43%, 46%)
HSV	hsv(196, 60%, 65%)
CMYK	cmyk(60.5%, 16.2%, 0%, 34.5%)
CIE-LAB	lab(54.76, -14.75, -21.18)
CIE-LCH	lch(54.76, 25.81, 235.15°)
OKLab	oklab(60.4% -0.0595 -0.059)
OKLCH	oklch(60.4% 0.084 224.8)
XYZ	xyz(18.5972, 22.7026, 39.9537)
Luminance	0.2270 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428CA7 #A75D42

analogous

#42A790 #428CA7 #4259A7

triadic

#428CA7 #A7428C #8CA742

tetradic

#428CA7 #9042A7 #A75D42 #59A742

square

#428CA7 #9042A7 #A75D42 #59A742

split-complementary

#428CA7 #A74259 #A79042

monochromatic

#1F424F #31677B #428CA7 #64A9C2 #90C1D3

Accessibility & contrast

On white

3.79

#428CA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#428CA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428CA7

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428CA7	#FFFFFF	#000000	##000000
##428CA7	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D89A8

Deuteranopia (green-blind)

#6F7EA7

Tritanopia (blue-blind)

#009495

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #428ca7;
/* rgb */ color: rgb(66, 140, 167);
/* oklch */ color: oklch(60.4% 0.084 224.8);

Tailwind

colors: {
  custom: {
    50: '#80adc1',
    500: '#428ca7',
    950: '#000000',
  },
}

SCSS

$custom: #428ca7;
$custom-light: #80adc1;
$custom-dark: #000000;

JSON

{
  "hex": "#428ca7",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 167
  },
  "hsl": {
    "h": 196.04,
    "s": 43.348,
    "l": 45.686
  },
  "oklch": {
    "l": 0.60403,
    "c": 0.08376,
    "h": 224.8
  },
  "luminance": 0.22704
}

Semantic roles & 50–950 ramp

primary

#428CA7

secondary

#BE9586

accent

#7655D3

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #428CA7

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

Preview Lab → · Contrast checker → · Palette generator →