#428DA2#428DA2

#428DA2 is a mid, moderate cyan. Relative luminance 0.228; OKLCH L 60.4% C 0.080 H 218.8°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#428DA2
RGB	rgb(66, 141, 162)
HSL	hsl(193, 42%, 45%)
HSV	hsv(193, 59%, 64%)
CMYK	cmyk(59.3%, 13%, 0%, 36.5%)
CIE-LAB	lab(54.88, -16.85, -18.13)
CIE-LCH	lch(54.88, 24.75, 227.08°)
OKLab	oklab(60.43% -0.0626 -0.0503)
OKLCH	oklch(60.43% 0.08 218.8)
XYZ	xyz(18.2906, 22.8149, 37.6152)
Luminance	0.2282 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428DA2 #A25742

analogous

#42A287 #428DA2 #425DA2

triadic

#428DA2 #A2428D #8DA242

tetradic

#428DA2 #8742A2 #A25742 #5DA242

square

#428DA2 #8742A2 #A25742 #5DA242

split-complementary

#428DA2 #A2425D #A28742

monochromatic

#1F414B #306777 #428DA2 #62ABBF #8EC2D1

Accessibility & contrast

On white

3.77

#428DA2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#428DA2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428DA2

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428DA2	#FFFFFF	#000000	##000000
##428DA2	1.00	3.77	5.56	5.56
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8089A3

Deuteranopia (green-blind)

#727FA2

Tritanopia (blue-blind)

#009494

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #428da2;
/* rgb */ color: rgb(66, 141, 162);
/* oklch */ color: oklch(60.4% 0.080 218.8);

Tailwind

colors: {
  custom: {
    50: '#7faebd',
    500: '#428da2',
    950: '#000000',
  },
}

SCSS

$custom: #428da2;
$custom-light: #7faebd;
$custom-dark: #000000;

JSON

{
  "hex": "#428da2",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 162
  },
  "hsl": {
    "h": 193.125,
    "s": 42.105,
    "l": 44.706
  },
  "oklch": {
    "l": 0.60434,
    "c": 0.08032,
    "h": 218.8
  },
  "luminance": 0.22817
}

Semantic roles & 50–950 ramp

primary

#428DA2

secondary

#BC9084

accent

#7156D2

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #428DA2

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

Preview Lab → · Contrast checker → · Palette generator →