#381B9C#381B9C

#381B9C is a dark, vivid violet. Relative luminance 0.040; OKLCH L 36.4% C 0.189 H 281.9°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#381B9C
RGB	rgb(56, 27, 156)
HSL	hsl(253, 70%, 36%)
HSV	hsv(253, 83%, 61%)
CMYK	cmyk(64.1%, 82.7%, 0%, 38.8%)
CIE-LAB	lab(23.75, 47.98, -64.16)
CIE-LCH	lch(23.75, 80.11, 306.79°)
OKLab	oklab(36.45% 0.0389 -0.1851)
OKLCH	oklch(36.45% 0.189 281.9)
XYZ	xyz(8.0217, 4.0243, 31.8001)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B9C #7F9C1B

analogous

#1B3F9C #381B9C #781B9C

triadic

#381B9C #9C381B #1B9C38

tetradic

#381B9C #9C1B3F #7F9C1B #1B9C78

square

#381B9C #9C1B3F #7F9C1B #1B9C78

split-complementary

#381B9C #9C781B #3F9C1B

monochromatic

#130934 #251268 #381B9C #4B24D0 #7151E1

Accessibility & contrast

On white

11.63

#381B9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#381B9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B9C

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B9C	#FFFFFF	#000000	##FFFFFF
##381B9C	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9F

Deuteranopia (green-blind)

#00349A

Tritanopia (blue-blind)

#00435D

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #381b9c;
/* rgb */ color: rgb(56, 27, 156);
/* oklch */ color: oklch(36.4% 0.189 281.9);

Tailwind

colors: {
  custom: {
    50: '#7d5dba',
    500: '#381b9c',
    950: '#000000',
  },
}

SCSS

$custom: #381b9c;
$custom-light: #7d5dba;
$custom-dark: #000000;

JSON

{
  "hex": "#381b9c",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 156
  },
  "hsl": {
    "h": 253.488,
    "s": 70.492,
    "l": 35.882
  },
  "oklch": {
    "l": 0.36445,
    "c": 0.18915,
    "h": 281.9
  },
  "luminance": 0.04025
}

Semantic roles & 50–950 ramp

primary

#381B9C

secondary

#A9C34F

accent

#ED3BC5

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #381B9C

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

Preview Lab → · Contrast checker → · Palette generator →