#428DA0#428DA0

#428DA0 is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.4% C 0.079 H 216.8°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#428DA0
RGB	rgb(66, 141, 160)
HSL	hsl(192, 42%, 44%)
HSV	hsv(192, 59%, 63%)
CMYK	cmyk(58.8%, 11.9%, 0%, 37.3%)
CIE-LAB	lab(54.81, -17.47, -17.09)
CIE-LCH	lch(54.81, 24.44, 224.37°)
OKLab	oklab(60.35% -0.0634 -0.0474)
OKLCH	oklch(60.35% 0.079 216.8)
XYZ	xyz(18.1143, 22.7443, 36.6864)
Luminance	0.2275 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428DA0 #A05542

analogous

#42A084 #428DA0 #425EA0

triadic

#428DA0 #A0428D #8DA042

tetradic

#428DA0 #8442A0 #A05542 #5EA042

square

#428DA0 #8442A0 #A05542 #5EA042

split-complementary

#428DA0 #A0425E #A08442

monochromatic

#1E4149 #306775 #428DA0 #61ABBE #8DC2D0

Accessibility & contrast

On white

3.78

#428DA0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#428DA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428DA0

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428DA0	#FFFFFF	#000000	##000000
##428DA0	1.00	3.78	5.55	5.55
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8089A1

Deuteranopia (green-blind)

#727FA0

Tritanopia (blue-blind)

#009493

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #428da0;
/* rgb */ color: rgb(66, 141, 160);
/* oklch */ color: oklch(60.4% 0.079 216.8);

Tailwind

colors: {
  custom: {
    50: '#7faebc',
    500: '#428da0',
    950: '#000000',
  },
}

SCSS

$custom: #428da0;
$custom-light: #7faebc;
$custom-dark: #000000;

JSON

{
  "hex": "#428da0",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 160
  },
  "hsl": {
    "h": 192.128,
    "s": 41.593,
    "l": 44.314
  },
  "oklch": {
    "l": 0.60351,
    "c": 0.07916,
    "h": 216.8
  },
  "luminance": 0.22746
}

Semantic roles & 50–950 ramp

primary

#428DA0

secondary

#BB8E83

accent

#6F56D1

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #428DA0

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

Preview Lab → · Contrast checker → · Palette generator →