#428BAD#428BAD

#428BAD is a mid, moderate cyan. Relative luminance 0.226; OKLCH L 60.4% C 0.089 H 230.9°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#428BAD
RGB	rgb(66, 139, 173)
HSL	hsl(199, 45%, 47%)
HSV	hsv(199, 62%, 68%)
CMYK	cmyk(61.8%, 19.7%, 0%, 32.2%)
CIE-LAB	lab(54.70, -12.28, -24.72)
CIE-LCH	lch(54.70, 27.60, 243.58°)
OKLab	oklab(60.43% -0.0561 -0.0691)
OKLCH	oklch(60.43% 0.089 230.9)
XYZ	xyz(19.0193, 22.6387, 42.8945)
Luminance	0.2264 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428BAD #AD6442

analogous

#42AD9A #428BAD #4256AD

triadic

#428BAD #AD428B #8BAD42

tetradic

#428BAD #9A42AD #AD6442 #56AD42

square

#428BAD #9A42AD #AD6442 #56AD42

split-complementary

#428BAD #AD4256 #AD9A42

monochromatic

#204454 #316781 #428BAD #67A7C5 #93C1D6

Accessibility & contrast

On white

3.80

#428BAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.53

#428BAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428BAD

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428BAD	#FFFFFF	#000000	##000000
##428BAD	1.00	3.80	5.53	5.53
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.53	21.00	1.00	1.00
##000000	5.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A89AF

Deuteranopia (green-blind)

#6B7EAD

Tritanopia (blue-blind)

#009496

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #428bad;
/* rgb */ color: rgb(66, 139, 173);
/* oklch */ color: oklch(60.4% 0.089 230.9);

Tailwind

colors: {
  custom: {
    50: '#81acc5',
    500: '#428bad',
    950: '#000000',
  },
}

SCSS

$custom: #428bad;
$custom-light: #81acc5;
$custom-dark: #000000;

JSON

{
  "hex": "#428bad",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 173
  },
  "hsl": {
    "h": 199.065,
    "s": 44.77,
    "l": 46.863
  },
  "oklch": {
    "l": 0.60428,
    "c": 0.08897,
    "h": 230.9
  },
  "luminance": 0.22641
}

Semantic roles & 50–950 ramp

primary

#428BAD

secondary

#C19B89

accent

#7C53D4

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #428BAD

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

Preview Lab → · Contrast checker → · Palette generator →