#381B9E#381B9E

#381B9E is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.7% C 0.191 H 281.5°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#381B9E
RGB	rgb(56, 27, 158)
HSL	hsl(253, 71%, 36%)
HSV	hsv(253, 83%, 62%)
CMYK	cmyk(64.6%, 82.9%, 0%, 38%)
CIE-LAB	lab(23.98, 48.56, -65.01)
CIE-LCH	lch(23.98, 81.14, 306.76°)
OKLab	oklab(36.67% 0.0383 -0.1876)
OKLCH	oklch(36.67% 0.191 281.5)
XYZ	xyz(8.1924, 4.0926, 32.6994)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B9E #819E1B

analogous

#1B409E #381B9E #7A1B9E

triadic

#381B9E #9E381B #1B9E38

tetradic

#381B9E #9E1B40 #819E1B #1B9E7A

square

#381B9E #9E1B40 #819E1B #1B9E7A

split-complementary

#381B9E #9E7A1B #409E1B

monochromatic

#130935 #25126A #381B9E #4B24D2 #7252E1

Accessibility & contrast

On white

11.55

#381B9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#381B9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B9E

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B9E	#FFFFFF	#000000	##FFFFFF
##381B9E	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA2

Deuteranopia (green-blind)

#00349C

Tritanopia (blue-blind)

#00445E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #381b9e;
/* rgb */ color: rgb(56, 27, 158);
/* oklch */ color: oklch(36.7% 0.191 281.5);

Tailwind

colors: {
  custom: {
    50: '#7d5dbc',
    500: '#381b9e',
    950: '#000000',
  },
}

SCSS

$custom: #381b9e;
$custom-light: #7d5dbc;
$custom-dark: #000000;

JSON

{
  "hex": "#381b9e",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 158
  },
  "hsl": {
    "h": 253.282,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.36665,
    "c": 0.19144,
    "h": 281.5
  },
  "luminance": 0.04093
}

Semantic roles & 50–950 ramp

primary

#381B9E

secondary

#ABC451

accent

#EE3AC6

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #381B9E

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

Preview Lab → · Contrast checker → · Palette generator →