#381B6E#381B6E

#381B6E is a dark, vivid violet. Relative luminance 0.028; OKLCH L 31.7% C 0.134 H 293.2°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#381B6E
RGB	rgb(56, 27, 110)
HSL	hsl(261, 61%, 27%)
HSV	hsv(261, 75%, 43%)
CMYK	cmyk(49.1%, 75.5%, 0%, 56.9%)
CIE-LAB	lab(19.01, 34.36, -42.98)
CIE-LCH	lch(19.01, 55.02, 308.64°)
OKLab	oklab(31.71% 0.0527 -0.1232)
OKLCH	oklch(31.71% 0.134 293.2)
XYZ	xyz(4.8365, 2.7503, 15.0248)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B6E #516E1B

analogous

#1B286E #381B6E #621B6E

triadic

#381B6E #6E381B #1B6E38

tetradic

#381B6E #6E1B28 #516E1B #1B6E62

square

#381B6E #6E1B28 #516E1B #1B6E62

split-complementary

#381B6E #6E621B #286E1B

monochromatic

#0D0619 #1F0F3D #381B6E #51279F #6B36CE

Accessibility & contrast

On white

13.55

#381B6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#381B6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B6E

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B6E	#FFFFFF	#000000	##FFFFFF
##381B6E	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F70

Deuteranopia (green-blind)

#002D6C

Tritanopia (blue-blind)

#283042

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #381b6e;
/* rgb */ color: rgb(56, 27, 110);
/* oklch */ color: oklch(31.7% 0.134 293.2);

Tailwind

colors: {
  custom: {
    50: '#755a98',
    500: '#381b6e',
    950: '#000000',
  },
}

SCSS

$custom: #381b6e;
$custom-light: #755a98;
$custom-dark: #000000;

JSON

{
  "hex": "#381b6e",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 110
  },
  "hsl": {
    "h": 260.964,
    "s": 60.584,
    "l": 26.863
  },
  "oklch": {
    "l": 0.31711,
    "c": 0.134,
    "h": 293.2
  },
  "luminance": 0.0275
}

Semantic roles & 50–950 ramp

primary

#381B6E

secondary

#81A342

accent

#E444AC

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040E

muted

#7B797E

Preview Lab

Preview with #381B6E

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

Preview Lab → · Contrast checker → · Palette generator →