#381B5B#381B5B

#381B5B is a dark, moderate violet. Relative luminance 0.024; OKLCH L 30.0% C 0.110 H 300.7°. Best body text is #FFFFFF at 14.23:1 contrast (WCAG AA passes).

Color values

HEX	#381B5B
RGB	rgb(56, 27, 91)
HSL	hsl(267, 54%, 23%)
HSV	hsv(267, 70%, 36%)
CMYK	cmyk(38.5%, 70.3%, 0%, 64.3%)
CIE-LAB	lab(17.37, 28.79, -33.15)
CIE-LCH	lch(17.37, 43.91, 310.97°)
OKLab	oklab(30.02% 0.0561 -0.0943)
OKLCH	oklch(30.02% 0.11 300.7)
XYZ	xyz(3.9107, 2.3799, 10.1488)
Luminance	0.0238 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 5.71

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B5B #3E5B1B

analogous

#1B1E5B #381B5B #581B5B

triadic

#381B5B #5B381B #1B5B38

tetradic

#381B5B #5B1B1E #3E5B1B #1B5B58

square

#381B5B #5B1B1E #3E5B1B #1B5B58

split-complementary

#381B5B #5B581B #1E5B1B

monochromatic

#0F0718 #1B0D2C #381B5B #55298A #7237B9

Accessibility & contrast

On white

14.23

#381B5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#381B5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B5B

14.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B5B	#FFFFFF	#000000	##FFFFFF
##381B5B	1.00	14.23	1.48	14.23
#FFFFFF	14.23	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A5D

Deuteranopia (green-blind)

#002A5A

Tritanopia (blue-blind)

#302938

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #381b5b;
/* rgb */ color: rgb(56, 27, 91);
/* oklch */ color: oklch(30.0% 0.110 300.7);

Tailwind

colors: {
  custom: {
    50: '#72598a',
    500: '#381b5b',
    950: '#000000',
  },
}

SCSS

$custom: #381b5b;
$custom-light: #72598a;
$custom-dark: #000000;

JSON

{
  "hex": "#381b5b",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 91
  },
  "hsl": {
    "h": 267.188,
    "s": 54.237,
    "l": 23.137
  },
  "oklch": {
    "l": 0.30018,
    "c": 0.10973,
    "h": 300.7
  },
  "luminance": 0.0238
}

Semantic roles & 50–950 ramp

primary

#381B5B

secondary

#6D9141

accent

#DE4A9B

background

#F7F5F8

surface

#EDE9F0

border

#C8C5CB

text

#08040C

muted

#7B797D

Preview Lab

Preview with #381B5B

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

Preview Lab → · Contrast checker → · Palette generator →