#381D81#381D81

#381D81 is a dark, vivid violet. Relative luminance 0.033; OKLCH L 33.8% C 0.155 H 287.3°. Best body text is #FFFFFF at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#381D81
RGB	rgb(56, 29, 129)
HSL	hsl(256, 63%, 31%)
HSV	hsv(256, 78%, 51%)
CMYK	cmyk(56.6%, 77.5%, 0%, 49.4%)
CIE-LAB	lab(21.22, 38.99, -51.53)
CIE-LCH	lch(21.22, 64.62, 307.11°)
OKLab	oklab(33.83% 0.046 -0.1483)
OKLCH	oklch(33.83% 0.155 287.3)
XYZ	xyz(6.0315, 3.3041, 21.0846)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381D81 #66811D

analogous

#1D3481 #381D81 #6A1D81

triadic

#381D81 #81381D #1D8138

tetradic

#381D81 #811D34 #66811D #1D816A

square

#381D81 #811D34 #66811D #1D816A

split-complementary

#381D81 #816A1D #34811D

monochromatic

#0D071D #22124F #381D81 #4E28B3 #6B44D5

Accessibility & contrast

On white

12.64

#381D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#381D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381D81

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381D81	#FFFFFF	#000000	##FFFFFF
##381D81	1.00	12.64	1.66	12.64
#FFFFFF	12.64	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003584

Deuteranopia (green-blind)

#00307F

Tritanopia (blue-blind)

#19394E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #381d81;
/* rgb */ color: rgb(56, 29, 129);
/* oklch */ color: oklch(33.8% 0.155 287.3);

Tailwind

colors: {
  custom: {
    50: '#785ca7',
    500: '#381d81',
    950: '#000000',
  },
}

SCSS

$custom: #381d81;
$custom-light: #785ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#381d81",
  "rgb": {
    "r": 56,
    "g": 29,
    "b": 129
  },
  "hsl": {
    "h": 256.2,
    "s": 63.291,
    "l": 30.98
  },
  "oklch": {
    "l": 0.3383,
    "c": 0.15525,
    "h": 287.3
  },
  "luminance": 0.03304
}

Semantic roles & 50–950 ramp

primary

#381D81

secondary

#96B446

accent

#E641BA

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A040F

muted

#7C797F

Preview Lab

Preview with #381D81

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

Preview Lab → · Contrast checker → · Palette generator →