#428AAC#428AAC

#428AAC is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.1% C 0.088 H 231.2°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#428AAC
RGB	rgb(66, 138, 172)
HSL	hsl(199, 45%, 47%)
HSV	hsv(199, 62%, 67%)
CMYK	cmyk(61.6%, 19.8%, 0%, 32.5%)
CIE-LAB	lab(54.36, -12.05, -24.67)
CIE-LCH	lch(54.36, 27.46, 243.98°)
OKLab	oklab(60.14% -0.0553 -0.0689)
OKLCH	oklch(60.14% 0.088 231.2)
XYZ	xyz(18.7788, 22.3119, 42.3387)
Luminance	0.2231 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428AAC #AC6442

analogous

#42AC99 #428AAC #4255AC

triadic

#428AAC #AC428A #8AAC42

tetradic

#428AAC #9942AC #AC6442 #55AC42

square

#428AAC #9942AC #AC6442 #55AC42

split-complementary

#428AAC #AC4255 #AC9942

monochromatic

#204354 #316780 #428AAC #67A6C5 #93C0D6

Accessibility & contrast

On white

3.84

#428AAC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#428AAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428AAC

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428AAC	#FFFFFF	#000000	##000000
##428AAC	1.00	3.84	5.46	5.46
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7988AE

Deuteranopia (green-blind)

#6A7DAC

Tritanopia (blue-blind)

#009395

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #428aac;
/* rgb */ color: rgb(66, 138, 172);
/* oklch */ color: oklch(60.1% 0.088 231.2);

Tailwind

colors: {
  custom: {
    50: '#80acc4',
    500: '#428aac',
    950: '#000000',
  },
}

SCSS

$custom: #428aac;
$custom-light: #80acc4;
$custom-dark: #000000;

JSON

{
  "hex": "#428aac",
  "rgb": {
    "r": 66,
    "g": 138,
    "b": 172
  },
  "hsl": {
    "h": 199.245,
    "s": 44.538,
    "l": 46.667
  },
  "oklch": {
    "l": 0.60143,
    "c": 0.08841,
    "h": 231.2
  },
  "luminance": 0.22314
}

Semantic roles & 50–950 ramp

primary

#428AAC

secondary

#C19B89

accent

#7D54D4

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #428AAC

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

Preview Lab → · Contrast checker → · Palette generator →