#391B8B#391B8B

#391B8B is a dark, vivid violet. Relative luminance 0.035; OKLCH L 34.7% C 0.169 H 285.8°. Best body text is #FFFFFF at 12.33:1 contrast (WCAG AA passes).

Color values

HEX	#391B8B
RGB	rgb(57, 27, 139)
HSL	hsl(256, 67%, 33%)
HSV	hsv(256, 81%, 55%)
CMYK	cmyk(59%, 80.6%, 0%, 45.5%)
CIE-LAB	lab(22.01, 43.11, -56.52)
CIE-LCH	lch(22.01, 71.09, 307.34°)
OKLab	oklab(34.71% 0.0461 -0.1628)
OKLCH	oklch(34.71% 0.169 285.8)
XYZ	xyz(6.7381, 3.5174, 24.7450)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391B8B #6D8B1B

analogous

#1B358B #391B8B #711B8B

triadic

#391B8B #8B391B #1B8B39

tetradic

#391B8B #8B1B35 #6D8B1B #1B8B71

square

#391B8B #8B1B35 #6D8B1B #1B8B71

split-complementary

#391B8B #8B711B #358B1B

monochromatic

#0F0725 #241158 #391B8B #4E25BE #6D45DB

Accessibility & contrast

On white

12.33

#391B8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#391B8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391B8B

12.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391B8B	#FFFFFF	#000000	##FFFFFF
##391B8B	1.00	12.33	1.70	12.33
#FFFFFF	12.33	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388E

Deuteranopia (green-blind)

#003189

Tritanopia (blue-blind)

#0E3C53

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #391b8b;
/* rgb */ color: rgb(57, 27, 139);
/* oklch */ color: oklch(34.7% 0.169 285.8);

Tailwind

colors: {
  custom: {
    50: '#7a5cae',
    500: '#391b8b',
    950: '#000000',
  },
}

SCSS

$custom: #391b8b;
$custom-light: #7a5cae;
$custom-dark: #000000;

JSON

{
  "hex": "#391b8b",
  "rgb": {
    "r": 57,
    "g": 27,
    "b": 139
  },
  "hsl": {
    "h": 256.071,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.34713,
    "c": 0.16921,
    "h": 285.8
  },
  "luminance": 0.03518
}

Semantic roles & 50–950 ramp

primary

#391B8B

secondary

#9DBC45

accent

#EA3DBC

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A0410

muted

#7C797F

Preview Lab

Preview with #391B8B

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

Preview Lab → · Contrast checker → · Palette generator →