#381F9B#381F9B

#381F9B is a dark, vivid violet. Relative luminance 0.042; OKLCH L 36.8% C 0.185 H 281.6°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#381F9B
RGB	rgb(56, 31, 155)
HSL	hsl(252, 67%, 36%)
HSV	hsv(252, 80%, 61%)
CMYK	cmyk(63.9%, 80%, 0%, 39.2%)
CIE-LAB	lab(24.28, 45.83, -62.67)
CIE-LCH	lch(24.28, 77.64, 306.18°)
OKLab	oklab(36.78% 0.0371 -0.1808)
OKLCH	oklch(36.78% 0.185 281.6)
XYZ	xyz(8.0354, 4.1867, 31.3887)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381F9B #829B1F

analogous

#1F449B #381F9B #761F9B

triadic

#381F9B #9B381F #1F9B38

tetradic

#381F9B #9B1F44 #829B1F #1F9B76

square

#381F9B #9B1F44 #829B1F #1F9B76

split-complementary

#381F9B #9B761F #449B1F

monochromatic

#130B35 #261568 #381F9B #4A29CE #7257DD

Accessibility & contrast

On white

11.43

#381F9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#381F9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381F9B

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381F9B	#FFFFFF	#000000	##FFFFFF
##381F9B	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E9E

Deuteranopia (green-blind)

#003599

Tritanopia (blue-blind)

#00445D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #381f9b;
/* rgb */ color: rgb(56, 31, 155);
/* oklch */ color: oklch(36.8% 0.185 281.6);

Tailwind

colors: {
  custom: {
    50: '#7c5fba',
    500: '#381f9b',
    950: '#000000',
  },
}

SCSS

$custom: #381f9b;
$custom-light: #7c5fba;
$custom-dark: #000000;

JSON

{
  "hex": "#381f9b",
  "rgb": {
    "r": 56,
    "g": 31,
    "b": 155
  },
  "hsl": {
    "h": 252.097,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.36778,
    "c": 0.18459,
    "h": 281.6
  },
  "luminance": 0.04187
}

Semantic roles & 50–950 ramp

primary

#381F9B

secondary

#ABC155

accent

#EA3EC7

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #381F9B

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

Preview Lab → · Contrast checker → · Palette generator →