#428BAE#428BAE

#428BAE is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.5% C 0.090 H 231.7°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#428BAE
RGB	rgb(66, 139, 174)
HSL	hsl(199, 45%, 47%)
HSV	hsv(199, 62%, 68%)
CMYK	cmyk(62.1%, 20.1%, 0%, 31.8%)
CIE-LAB	lab(54.74, -11.96, -25.23)
CIE-LCH	lch(54.74, 27.92, 244.64°)
OKLab	oklab(60.47% -0.0557 -0.0705)
OKLCH	oklch(60.47% 0.09 231.7)
XYZ	xyz(19.1164, 22.6776, 43.4060)
Luminance	0.2268 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428BAE #AE6542

analogous

#42AE9B #428BAE #4255AE

triadic

#428BAE #AE428B #8BAE42

tetradic

#428BAE #9B42AE #AE6542 #55AE42

square

#428BAE #9B42AE #AE6542 #55AE42

split-complementary

#428BAE #AE4255 #AE9B42

monochromatic

#204455 #316882 #428BAE #68A7C6 #94C1D6

Accessibility & contrast

On white

3.79

#428BAE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#428BAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428BAE

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428BAE	#FFFFFF	#000000	##000000
##428BAE	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A89B0

Deuteranopia (green-blind)

#6B7EAD

Tritanopia (blue-blind)

#009597

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #428bae;
/* rgb */ color: rgb(66, 139, 174);
/* oklch */ color: oklch(60.5% 0.090 231.7);

Tailwind

colors: {
  custom: {
    50: '#81acc6',
    500: '#428bae',
    950: '#000000',
  },
}

SCSS

$custom: #428bae;
$custom-light: #81acc6;
$custom-dark: #000000;

JSON

{
  "hex": "#428bae",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 174
  },
  "hsl": {
    "h": 199.444,
    "s": 45,
    "l": 47.059
  },
  "oklch": {
    "l": 0.60474,
    "c": 0.08988,
    "h": 231.7
  },
  "luminance": 0.22679
}

Semantic roles & 50–950 ramp

primary

#428BAE

secondary

#C29C8A

accent

#7D53D5

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #428BAE

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

Preview Lab → · Contrast checker → · Palette generator →