#3820B4#3820B4

#3820B4 is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.6% C 0.213 H 277.8°. Best body text is #FFFFFF at 10.33:1 contrast (WCAG AA passes).

Color values

HEX	#3820B4
RGB	rgb(56, 32, 180)
HSL	hsl(250, 70%, 42%)
HSV	hsv(250, 82%, 71%)
CMYK	cmyk(68.9%, 82.2%, 0%, 29.4%)
CIE-LAB	lab(27.21, 52.78, -72.94)
CIE-LCH	lch(27.21, 90.03, 305.89°)
OKLab	oklab(39.62% 0.029 -0.2107)
OKLCH	oklch(39.62% 0.213 277.8)
XYZ	xyz(10.3830, 5.1681, 43.6215)
Luminance	0.0517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3820B4 #9CB420

analogous

#2052B4 #3820B4 #8220B4

triadic

#3820B4 #B43820 #20B438

tetradic

#3820B4 #B42052 #9CB420 #20B482

square

#3820B4 #B42052 #9CB420 #20B482

split-complementary

#3820B4 #B48220 #52B420

monochromatic

#180E4C #281780 #3820B4 #5136DB #7E6AE4

Accessibility & contrast

On white

10.33

#3820B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#3820B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3820B4

10.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3820B4	#FFFFFF	#000000	##FFFFFF
##3820B4	1.00	10.33	2.03	10.33
#FFFFFF	10.33	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046B8

Deuteranopia (green-blind)

#003AB1

Tritanopia (blue-blind)

#004F6C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3820b4;
/* rgb */ color: rgb(56, 32, 180);
/* oklch */ color: oklch(39.6% 0.213 277.8);

Tailwind

colors: {
  custom: {
    50: '#8161cc',
    500: '#3820b4',
    950: '#000000',
  },
}

SCSS

$custom: #3820b4;
$custom-light: #8161cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3820b4",
  "rgb": {
    "r": 56,
    "g": 32,
    "b": 180
  },
  "hsl": {
    "h": 249.73,
    "s": 69.811,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39622,
    "c": 0.21269,
    "h": 277.8
  },
  "luminance": 0.05169
}

Semantic roles & 50–950 ramp

primary

#3820B4

secondary

#BACA66

accent

#ED3BD0

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0514

muted

#7D7A82

Preview Lab

Preview with #3820B4

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

Preview Lab → · Contrast checker → · Palette generator →