#428DA7#428DA7

#428DA7 is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.6% C 0.084 H 223.6°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#428DA7
RGB	rgb(66, 141, 167)
HSL	hsl(195, 43%, 46%)
HSV	hsv(195, 60%, 65%)
CMYK	cmyk(60.5%, 15.6%, 0%, 34.5%)
CIE-LAB	lab(55.07, -15.30, -20.71)
CIE-LCH	lch(55.07, 25.75, 233.55°)
OKLab	oklab(60.65% -0.0606 -0.0576)
OKLCH	oklch(60.65% 0.084 223.6)
XYZ	xyz(18.7439, 22.9962, 40.0026)
Luminance	0.2300 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428DA7 #A75C42

analogous

#42A78F #428DA7 #425AA7

triadic

#428DA7 #A7428D #8DA742

tetradic

#428DA7 #8F42A7 #A75C42 #5AA742

square

#428DA7 #8F42A7 #A75C42 #5AA742

split-complementary

#428DA7 #A7425A #A78F42

monochromatic

#1F434F #31687B #428DA7 #64AAC2 #90C2D3

Accessibility & contrast

On white

3.75

#428DA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#428DA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428DA7

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428DA7	#FFFFFF	#000000	##000000
##428DA7	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8AA8

Deuteranopia (green-blind)

#707FA7

Tritanopia (blue-blind)

#009595

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #428da7;
/* rgb */ color: rgb(66, 141, 167);
/* oklch */ color: oklch(60.6% 0.084 223.6);

Tailwind

colors: {
  custom: {
    50: '#80aec1',
    500: '#428da7',
    950: '#000000',
  },
}

SCSS

$custom: #428da7;
$custom-light: #80aec1;
$custom-dark: #000000;

JSON

{
  "hex": "#428da7",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 167
  },
  "hsl": {
    "h": 195.446,
    "s": 43.348,
    "l": 45.686
  },
  "oklch": {
    "l": 0.60646,
    "c": 0.08363,
    "h": 223.6
  },
  "luminance": 0.22998
}

Semantic roles & 50–950 ramp

primary

#428DA7

secondary

#BE9586

accent

#7555D3

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #428DA7

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

Preview Lab → · Contrast checker → · Palette generator →