#381F99#381F99

#381F99 is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.6% C 0.182 H 281.9°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#381F99
RGB	rgb(56, 31, 153)
HSL	hsl(252, 66%, 36%)
HSV	hsv(252, 80%, 60%)
CMYK	cmyk(63.4%, 79.7%, 0%, 40%)
CIE-LAB	lab(24.06, 45.23, -61.80)
CIE-LCH	lch(24.06, 76.58, 306.20°)
OKLab	oklab(36.57% 0.0377 -0.1783)
OKLCH	oklch(36.57% 0.182 281.9)
XYZ	xyz(7.8688, 4.1201, 30.5114)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381F99 #80991F

analogous

#1F4399 #381F99 #751F99

triadic

#381F99 #99381F #1F9938

tetradic

#381F99 #991F43 #80991F #1F9975

square

#381F99 #991F43 #80991F #1F9975

split-complementary

#381F99 #99751F #43991F

monochromatic

#130A33 #251566 #381F99 #4B29CC #7156DD

Accessibility & contrast

On white

11.51

#381F99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#381F99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381F99

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381F99	#FFFFFF	#000000	##FFFFFF
##381F99	1.00	11.51	1.82	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9C

Deuteranopia (green-blind)

#003597

Tritanopia (blue-blind)

#00435C

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #381f99;
/* rgb */ color: rgb(56, 31, 153);
/* oklch */ color: oklch(36.6% 0.182 281.9);

Tailwind

colors: {
  custom: {
    50: '#7c5fb8',
    500: '#381f99',
    950: '#000000',
  },
}

SCSS

$custom: #381f99;
$custom-light: #7c5fb8;
$custom-dark: #000000;

JSON

{
  "hex": "#381f99",
  "rgb": {
    "r": 56,
    "g": 31,
    "b": 153
  },
  "hsl": {
    "h": 252.295,
    "s": 66.304,
    "l": 36.078
  },
  "oklch": {
    "l": 0.36565,
    "c": 0.18222,
    "h": 281.9
  },
  "luminance": 0.04121
}

Semantic roles & 50–950 ramp

primary

#381F99

secondary

#AAC054

accent

#E93FC6

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #381F99

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

Preview Lab → · Contrast checker → · Palette generator →