#3828A4#3828A4

#3828A4 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.9% C 0.187 H 279.0°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#3828A4
RGB	rgb(56, 40, 164)
HSL	hsl(248, 61%, 40%)
HSV	hsv(248, 76%, 64%)
CMYK	cmyk(65.9%, 75.6%, 0%, 35.7%)
CIE-LAB	lab(26.84, 43.97, -63.93)
CIE-LCH	lch(26.84, 77.59, 304.52°)
OKLab	oklab(38.86% 0.0293 -0.1846)
OKLCH	oklch(38.86% 0.187 279)
XYZ	xyz(9.0884, 5.0379, 35.6082)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3828A4 #94A428

analogous

#2856A4 #3828A4 #7628A4

triadic

#3828A4 #A43828 #28A438

tetradic

#3828A4 #A42856 #94A428 #28A476

square

#3828A4 #A42856 #94A428 #28A476

split-complementary

#3828A4 #A47628 #56A428

monochromatic

#161042 #271C73 #3828A4 #4D3ACF #7A6BDB

Accessibility & contrast

On white

10.46

#3828A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#3828A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3828A4

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3828A4	#FFFFFF	#000000	##FFFFFF
##3828A4	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A8

Deuteranopia (green-blind)

#003AA2

Tritanopia (blue-blind)

#004C64

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #3828a4;
/* rgb */ color: rgb(56, 40, 164);
/* oklch */ color: oklch(38.9% 0.187 279.0);

Tailwind

colors: {
  custom: {
    50: '#7d65c0',
    500: '#3828a4',
    950: '#000000',
  },
}

SCSS

$custom: #3828a4;
$custom-light: #7d65c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3828a4",
  "rgb": {
    "r": 56,
    "g": 40,
    "b": 164
  },
  "hsl": {
    "h": 247.742,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.38856,
    "c": 0.18687,
    "h": 279
  },
  "luminance": 0.05039
}

Semantic roles & 50–950 ramp

primary

#3828A4

secondary

#B6C166

accent

#E444CF

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #3828A4

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

Preview Lab → · Contrast checker → · Palette generator →