#3828AB#3828AB

#3828AB is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.6% C 0.195 H 278.1°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#3828AB
RGB	rgb(56, 40, 171)
HSL	hsl(247, 62%, 41%)
HSV	hsv(247, 77%, 67%)
CMYK	cmyk(67.3%, 76.6%, 0%, 32.9%)
CIE-LAB	lab(27.57, 46.17, -66.96)
CIE-LCH	lch(27.57, 81.33, 304.59°)
OKLab	oklab(39.58% 0.0276 -0.1934)
OKLCH	oklch(39.58% 0.195 278.1)
XYZ	xyz(9.7380, 5.2978, 39.0296)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3828AB #9BAB28

analogous

#285AAB #3828AB #7A28AB

triadic

#3828AB #AB3828 #28AB38

tetradic

#3828AB #AB285A #9BAB28 #28AB7A

square

#3828AB #AB285A #9BAB28 #28AB7A

split-complementary

#3828AB #AB7A28 #5AAB28

monochromatic

#181148 #281C79 #3828AB #503ED2 #7D70DE

Accessibility & contrast

On white

10.20

#3828AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#3828AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3828AB

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3828AB	#FFFFFF	#000000	##FFFFFF
##3828AB	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046AF

Deuteranopia (green-blind)

#003CA9

Tritanopia (blue-blind)

#004E68

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3828ab;
/* rgb */ color: rgb(56, 40, 171);
/* oklch */ color: oklch(39.6% 0.195 278.1);

Tailwind

colors: {
  custom: {
    50: '#7f65c5',
    500: '#3828ab',
    950: '#000000',
  },
}

SCSS

$custom: #3828ab;
$custom-light: #7f65c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3828ab",
  "rgb": {
    "r": 56,
    "g": 40,
    "b": 171
  },
  "hsl": {
    "h": 247.328,
    "s": 62.085,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39582,
    "c": 0.19537,
    "h": 278.1
  },
  "luminance": 0.05299
}

Semantic roles & 50–950 ramp

primary

#3828AB

secondary

#B9C46A

accent

#E543D1

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3828AB

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

Preview Lab → · Contrast checker → · Palette generator →