#381B80#381B80

#381B80 is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.5% C 0.156 H 287.9°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#381B80
RGB	rgb(56, 27, 128)
HSL	hsl(257, 65%, 30%)
HSV	hsv(257, 79%, 50%)
CMYK	cmyk(56.3%, 78.9%, 0%, 49.8%)
CIE-LAB	lab(20.76, 39.72, -51.66)
CIE-LCH	lch(20.76, 65.16, 307.56°)
OKLab	oklab(33.48% 0.0479 -0.1486)
OKLCH	oklch(33.48% 0.156 287.9)
XYZ	xyz(5.9179, 3.1828, 20.7204)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B80 #63801B

analogous

#1B3080 #381B80 #6A1B80

triadic

#381B80 #80381B #1B8038

tetradic

#381B80 #801B30 #63801B #1B806A

square

#381B80 #801B30 #63801B #1B806A

split-complementary

#381B80 #806A1B #30801B

monochromatic

#0C061B #22104D #381B80 #4E26B3 #6A3FD6

Accessibility & contrast

On white

12.83

#381B80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#381B80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B80

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B80	#FFFFFF	#000000	##FFFFFF
##381B80	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003483

Deuteranopia (green-blind)

#002F7E

Tritanopia (blue-blind)

#1A384D

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #381b80;
/* rgb */ color: rgb(56, 27, 128);
/* oklch */ color: oklch(33.5% 0.156 287.9);

Tailwind

colors: {
  custom: {
    50: '#785ba6',
    500: '#381b80',
    950: '#000000',
  },
}

SCSS

$custom: #381b80;
$custom-light: #785ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#381b80",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 128
  },
  "hsl": {
    "h": 257.228,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.33476,
    "c": 0.15615,
    "h": 287.9
  },
  "luminance": 0.03183
}

Semantic roles & 50–950 ramp

primary

#381B80

secondary

#93B443

accent

#E840B8

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A040F

muted

#7C797F

Preview Lab

Preview with #381B80

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

Preview Lab → · Contrast checker → · Palette generator →