#381B64#381B64

#381B64 is a dark, vivid violet. Relative luminance 0.025; OKLCH L 30.8% C 0.121 H 296.8°. Best body text is #FFFFFF at 13.92:1 contrast (WCAG AA passes).

Color values

HEX	#381B64
RGB	rgb(56, 27, 100)
HSL	hsl(264, 57%, 25%)
HSV	hsv(264, 73%, 39%)
CMYK	cmyk(44%, 73%, 0%, 60.8%)
CIE-LAB	lab(18.12, 31.41, -37.90)
CIE-LCH	lch(18.12, 49.22, 309.65°)
OKLab	oklab(30.8% 0.0548 -0.1083)
OKLCH	oklch(30.8% 0.121 296.8)
XYZ	xyz(4.3225, 2.5446, 12.3175)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 5.44

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B64 #47641B

analogous

#1B2264 #381B64 #5D1B64

triadic

#381B64 #64381B #1B6438

tetradic

#381B64 #641B22 #47641B #1B645D

square

#381B64 #641B22 #47641B #1B645D

split-complementary

#381B64 #645D1B #22641B

monochromatic

#0D0718 #1D0E34 #381B64 #532894 #6E35C4

Accessibility & contrast

On white

13.92

#381B64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#381B64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B64

13.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B64	#FFFFFF	#000000	##FFFFFF
##381B64	1.00	13.92	1.51	13.92
#FFFFFF	13.92	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D66

Deuteranopia (green-blind)

#002B63

Tritanopia (blue-blind)

#2D2D3D

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #381b64;
/* rgb */ color: rgb(56, 27, 100);
/* oklch */ color: oklch(30.8% 0.121 296.8);

Tailwind

colors: {
  custom: {
    50: '#735a91',
    500: '#381b64',
    950: '#000000',
  },
}

SCSS

$custom: #381b64;
$custom-light: #735a91;
$custom-dark: #000000;

JSON

{
  "hex": "#381b64",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 100
  },
  "hsl": {
    "h": 263.836,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.30795,
    "c": 0.12134,
    "h": 296.8
  },
  "luminance": 0.02545
}

Semantic roles & 50–950 ramp

primary

#381B64

secondary

#769941

accent

#E147A4

background

#F7F5F8

surface

#EDE9F0

border

#C8C5CB

text

#08040D

muted

#7B797D

Preview Lab

Preview with #381B64

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

Preview Lab → · Contrast checker → · Palette generator →