#381CB4#381CB4

#381CB4 is a dark, highly saturated violet. Relative luminance 0.050; OKLCH L 39.2% C 0.216 H 278.1°. Best body text is #FFFFFF at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#381CB4
RGB	rgb(56, 28, 180)
HSL	hsl(251, 73%, 41%)
HSV	hsv(251, 84%, 71%)
CMYK	cmyk(68.9%, 84.4%, 0%, 29.4%)
CIE-LAB	lab(26.64, 54.46, -73.89)
CIE-LCH	lch(26.64, 91.79, 306.39°)
OKLab	oklab(39.23% 0.0305 -0.2134)
OKLCH	oklch(39.23% 0.216 278.1)
XYZ	xyz(10.2817, 4.9656, 43.5878)
Luminance	0.0497 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381CB4 #98B41C

analogous

#1C4CB4 #381CB4 #841CB4

triadic

#381CB4 #B4381C #1CB438

tetradic

#381CB4 #B41C4C #98B41C #1CB484

square

#381CB4 #B41C4C #98B41C #1CB484

split-complementary

#381CB4 #B4841C #4CB41C

monochromatic

#170C4A #28147F #381CB4 #4F2FDF #7C64E7

Accessibility & contrast

On white

10.53

#381CB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#381CB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381CB4

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381CB4	#FFFFFF	#000000	##FFFFFF
##381CB4	1.00	10.53	1.99	10.53
#FFFFFF	10.53	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045B8

Deuteranopia (green-blind)

#0039B1

Tritanopia (blue-blind)

#004D6B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #381cb4;
/* rgb */ color: rgb(56, 28, 180);
/* oklch */ color: oklch(39.2% 0.216 278.1);

Tailwind

colors: {
  custom: {
    50: '#825fcc',
    500: '#381cb4',
    950: '#000000',
  },
}

SCSS

$custom: #381cb4;
$custom-light: #825fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#381cb4",
  "rgb": {
    "r": 56,
    "g": 28,
    "b": 180
  },
  "hsl": {
    "h": 251.053,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.39229,
    "c": 0.21557,
    "h": 278.1
  },
  "luminance": 0.04967
}

Semantic roles & 50–950 ramp

primary

#381CB4

secondary

#B8CC60

accent

#F038CE

background

#F8F5FC

surface

#F0EAF9

border

#CBC6D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #381CB4

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

Preview Lab → · Contrast checker → · Palette generator →