#381B88#381B88

#381B88 is a dark, vivid violet. Relative luminance 0.034; OKLCH L 34.3% C 0.166 H 285.9°. Best body text is #FFFFFF at 12.50:1 contrast (WCAG AA passes).

Color values

HEX	#381B88
RGB	rgb(56, 27, 136)
HSL	hsl(256, 67%, 32%)
HSV	hsv(256, 80%, 53%)
CMYK	cmyk(58.8%, 80.1%, 0%, 46.7%)
CIE-LAB	lab(21.59, 42.10, -55.34)
CIE-LCH	lch(21.59, 69.53, 307.26°)
OKLab	oklab(34.3% 0.0455 -0.1594)
OKLCH	oklch(34.3% 0.166 285.9)
XYZ	xyz(6.4654, 3.4018, 23.6037)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B88 #6B881B

analogous

#1B3588 #381B88 #6F1B88

triadic

#381B88 #88381B #1B8838

tetradic

#381B88 #881B35 #6B881B #1B886F

square

#381B88 #881B35 #6B881B #1B886F

split-complementary

#381B88 #886F1B #35881B

monochromatic

#0E0722 #231155 #381B88 #4D25BB #6C44DA

Accessibility & contrast

On white

12.50

#381B88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#381B88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B88

12.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B88	#FFFFFF	#000000	##FFFFFF
##381B88	1.00	12.50	1.68	12.50
#FFFFFF	12.50	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378B

Deuteranopia (green-blind)

#003086

Tritanopia (blue-blind)

#0F3B51

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #381b88;
/* rgb */ color: rgb(56, 27, 136);
/* oklch */ color: oklch(34.3% 0.166 285.9);

Tailwind

colors: {
  custom: {
    50: '#795cac',
    500: '#381b88',
    950: '#000000',
  },
}

SCSS

$custom: #381b88;
$custom-light: #795cac;
$custom-dark: #000000;

JSON

{
  "hex": "#381b88",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 136
  },
  "hsl": {
    "h": 255.963,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.343,
    "c": 0.16575,
    "h": 285.9
  },
  "luminance": 0.03402
}

Semantic roles & 50–950 ramp

primary

#381B88

secondary

#9BBB44

accent

#EA3EBC

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A0410

muted

#7C797F

Preview Lab

Preview with #381B88

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

Preview Lab → · Contrast checker → · Palette generator →