#428EA7#428EA7

#428EA7 is a mid, moderate cyan. Relative luminance 0.233; OKLCH L 60.9% C 0.084 H 222.4°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#428EA7
RGB	rgb(66, 142, 167)
HSL	hsl(195, 43%, 46%)
HSV	hsv(195, 60%, 65%)
CMYK	cmyk(60.5%, 15%, 0%, 34.5%)
CIE-LAB	lab(55.37, -15.84, -20.25)
CIE-LCH	lch(55.37, 25.71, 231.96°)
OKLab	oklab(60.89% -0.0617 -0.0563)
OKLCH	oklch(60.89% 0.084 222.4)
XYZ	xyz(18.8921, 23.2924, 40.0520)
Luminance	0.2329 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428EA7 #A75B42

analogous

#42A78D #428EA7 #425CA7

triadic

#428EA7 #A7428E #8EA742

tetradic

#428EA7 #8D42A7 #A75B42 #5CA742

square

#428EA7 #8D42A7 #A75B42 #5CA742

split-complementary

#428EA7 #A7425C #A78D42

monochromatic

#1F434F #31697B #428EA7 #64ABC2 #90C3D3

Accessibility & contrast

On white

3.71

#428EA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#428EA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428EA7

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428EA7	#FFFFFF	#000000	##000000
##428EA7	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8BA8

Deuteranopia (green-blind)

#7180A7

Tritanopia (blue-blind)

#009696

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #428ea7;
/* rgb */ color: rgb(66, 142, 167);
/* oklch */ color: oklch(60.9% 0.084 222.4);

Tailwind

colors: {
  custom: {
    50: '#80afc1',
    500: '#428ea7',
    950: '#000000',
  },
}

SCSS

$custom: #428ea7;
$custom-light: #80afc1;
$custom-dark: #000000;

JSON

{
  "hex": "#428ea7",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 167
  },
  "hsl": {
    "h": 194.851,
    "s": 43.348,
    "l": 45.686
  },
  "oklch": {
    "l": 0.60889,
    "c": 0.08356,
    "h": 222.4
  },
  "luminance": 0.23294
}

Semantic roles & 50–950 ramp

primary

#428EA7

secondary

#BE9486

accent

#7455D3

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #428EA7

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

Preview Lab → · Contrast checker → · Palette generator →