#381B63#381B63

#381B63 is a dark, vivid violet. Relative luminance 0.025; OKLCH L 30.7% C 0.120 H 297.2°. Best body text is #FFFFFF at 13.95:1 contrast (WCAG AA passes).

Color values

HEX	#381B63
RGB	rgb(56, 27, 99)
HSL	hsl(264, 57%, 25%)
HSV	hsv(264, 73%, 39%)
CMYK	cmyk(43.4%, 72.7%, 0%, 61.2%)
CIE-LAB	lab(18.03, 31.11, -37.38)
CIE-LCH	lch(18.03, 48.64, 309.77°)
OKLab	oklab(30.71% 0.055 -0.1067)
OKLCH	oklch(30.71% 0.12 297.2)
XYZ	xyz(4.2744, 2.5254, 12.0642)
Luminance	0.0253 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 5.43

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B63 #46631B

analogous

#1B2263 #381B63 #5C1B63

triadic

#381B63 #63381B #1B6338

tetradic

#381B63 #631B22 #46631B #1B635C

square

#381B63 #631B22 #46631B #1B635C

split-complementary

#381B63 #635C1B #22631B

monochromatic

#0E0718 #1D0E33 #381B63 #532893 #6E35C3

Accessibility & contrast

On white

13.95

#381B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#381B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B63

13.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B63	#FFFFFF	#000000	##FFFFFF
##381B63	1.00	13.95	1.51	13.95
#FFFFFF	13.95	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C65

Deuteranopia (green-blind)

#002B62

Tritanopia (blue-blind)

#2D2C3C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #381b63;
/* rgb */ color: rgb(56, 27, 99);
/* oklch */ color: oklch(30.7% 0.120 297.2);

Tailwind

colors: {
  custom: {
    50: '#735a90',
    500: '#381b63',
    950: '#000000',
  },
}

SCSS

$custom: #381b63;
$custom-light: #735a90;
$custom-dark: #000000;

JSON

{
  "hex": "#381b63",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 99
  },
  "hsl": {
    "h": 264.167,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.30706,
    "c": 0.12005,
    "h": 297.2
  },
  "luminance": 0.02525
}

Semantic roles & 50–950 ramp

primary

#381B63

secondary

#759841

accent

#E047A3

background

#F7F5F8

surface

#EDE9F0

border

#C8C5CB

text

#08040C

muted

#7B797D

Preview Lab

Preview with #381B63

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

Preview Lab → · Contrast checker → · Palette generator →