#391B88#391B88

#391B88 is a dark, vivid violet. Relative luminance 0.034; OKLCH L 34.4% C 0.166 H 286.5°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#391B88
RGB	rgb(57, 27, 136)
HSL	hsl(257, 67%, 32%)
HSV	hsv(257, 80%, 53%)
CMYK	cmyk(58.1%, 80.1%, 0%, 46.7%)
CIE-LAB	lab(21.69, 42.23, -55.16)
CIE-LCH	lch(21.69, 69.47, 307.44°)
OKLab	oklab(34.4% 0.0471 -0.1588)
OKLCH	oklch(34.4% 0.166 286.5)
XYZ	xyz(6.5219, 3.4309, 23.6064)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391B88 #6A881B

analogous

#1B3388 #391B88 #701B88

triadic

#391B88 #88391B #1B8839

tetradic

#391B88 #881B33 #6A881B #1B8870

square

#391B88 #881B33 #6A881B #1B8870

split-complementary

#391B88 #88701B #33881B

monochromatic

#0E0722 #241155 #391B88 #4E25BB #6D44DA

Accessibility & contrast

On white

12.45

#391B88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#391B88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391B88

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391B88	#FFFFFF	#000000	##FFFFFF
##391B88	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378B

Deuteranopia (green-blind)

#003186

Tritanopia (blue-blind)

#133B51

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #391b88;
/* rgb */ color: rgb(57, 27, 136);
/* oklch */ color: oklch(34.4% 0.166 286.5);

Tailwind

colors: {
  custom: {
    50: '#7a5cac',
    500: '#391b88',
    950: '#000000',
  },
}

SCSS

$custom: #391b88;
$custom-light: #7a5cac;
$custom-dark: #000000;

JSON

{
  "hex": "#391b88",
  "rgb": {
    "r": 57,
    "g": 27,
    "b": 136
  },
  "hsl": {
    "h": 256.514,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.344,
    "c": 0.16566,
    "h": 286.5
  },
  "luminance": 0.03431
}

Semantic roles & 50–950 ramp

primary

#391B88

secondary

#9ABB44

accent

#EA3EBB

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A0410

muted

#7C797F

Preview Lab

Preview with #391B88

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

Preview Lab → · Contrast checker → · Palette generator →