#428ACA#428ACA

#428ACA is a mid, vivid cyan. Relative luminance 0.236; OKLCH L 61.6% C 0.121 H 248.0°. Best body text is #000000 at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#428ACA
RGB	rgb(66, 138, 202)
HSL	hsl(208, 56%, 53%)
HSV	hsv(208, 67%, 79%)
CMYK	cmyk(67.3%, 31.7%, 0%, 20.8%)
CIE-LAB	lab(55.68, -2.02, -39.70)
CIE-LCH	lch(55.68, 39.75, 267.09°)
OKLab	oklab(61.63% -0.0454 -0.1123)
OKLCH	oklch(61.63% 0.121 248)
XYZ	xyz(21.9919, 23.5972, 59.2614)
Luminance	0.2360 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428ACA #CA8242

analogous

#42CAC6 #428ACA #4246CA

triadic

#428ACA #CA428A #8ACA42

tetradic

#428ACA #C642CA #CA8242 #46CA42

square

#428ACA #C642CA #CA8242 #46CA42

split-complementary

#428ACA #CA4246 #CAC642

monochromatic

#204B72 #2D6BA2 #428ACA #72A8D7 #A2C5E5

Accessibility & contrast

On white

3.67

#428ACA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.72

#428ACA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428ACA

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428ACA	#FFFFFF	#000000	##000000
##428ACA	1.00	3.67	5.72	5.72
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.72	21.00	1.00	1.00
##000000	5.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E8DCD

Deuteranopia (green-blind)

#5B80C9

Tritanopia (blue-blind)

#0099A1

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #428aca;
/* rgb */ color: rgb(66, 138, 202);
/* oklch */ color: oklch(61.6% 0.121 248.0);

Tailwind

colors: {
  custom: {
    50: '#85abda',
    500: '#428aca',
    950: '#000000',
  },
}

SCSS

$custom: #428aca;
$custom-light: #85abda;
$custom-dark: #000000;

JSON

{
  "hex": "#428aca",
  "rgb": {
    "r": 66,
    "g": 138,
    "b": 202
  },
  "hsl": {
    "h": 208.235,
    "s": 56.198,
    "l": 52.549
  },
  "oklch": {
    "l": 0.61629,
    "c": 0.12119,
    "h": 248
  },
  "luminance": 0.23599
}

Semantic roles & 50–950 ramp

primary

#428ACA

secondary

#D1B296

accent

#8F48DF

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #428ACA

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

Preview Lab → · Contrast checker → · Palette generator →