#428DAD#428DAD

#428DAD is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 60.9% C 0.088 H 228.7°. Best body text is #000000 at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#428DAD
RGB	rgb(66, 141, 173)
HSL	hsl(198, 45%, 47%)
HSV	hsv(198, 62%, 68%)
CMYK	cmyk(61.8%, 18.5%, 0%, 32.2%)
CIE-LAB	lab(55.30, -13.39, -23.79)
CIE-LCH	lch(55.30, 27.30, 240.63°)
OKLab	oklab(60.91% -0.0583 -0.0664)
OKLCH	oklch(60.91% 0.088 228.7)
XYZ	xyz(19.3115, 23.2232, 42.9919)
Luminance	0.2323 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428DAD #AD6242

analogous

#42AD98 #428DAD #4258AD

triadic

#428DAD #AD428D #8DAD42

tetradic

#428DAD #9842AD #AD6242 #58AD42

square

#428DAD #9842AD #AD6242 #58AD42

split-complementary

#428DAD #AD4258 #AD9842

monochromatic

#204554 #316981 #428DAD #67A9C5 #93C2D6

Accessibility & contrast

On white

3.72

#428DAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.65

#428DAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428DAD

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428DAD	#FFFFFF	#000000	##000000
##428DAD	1.00	3.72	5.65	5.65
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.65	21.00	1.00	1.00
##000000	5.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8BAF

Deuteranopia (green-blind)

#6D80AD

Tritanopia (blue-blind)

#009697

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #428dad;
/* rgb */ color: rgb(66, 141, 173);
/* oklch */ color: oklch(60.9% 0.088 228.7);

Tailwind

colors: {
  custom: {
    50: '#81aec5',
    500: '#428dad',
    950: '#000000',
  },
}

SCSS

$custom: #428dad;
$custom-light: #81aec5;
$custom-dark: #000000;

JSON

{
  "hex": "#428dad",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 173
  },
  "hsl": {
    "h": 197.944,
    "s": 44.77,
    "l": 46.863
  },
  "oklch": {
    "l": 0.60909,
    "c": 0.08836,
    "h": 228.7
  },
  "luminance": 0.23225
}

Semantic roles & 50–950 ramp

primary

#428DAD

secondary

#C19A89

accent

#7A53D4

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #428DAD

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

Preview Lab → · Contrast checker → · Palette generator →