#391B9B#391B9B

#391B9B is a dark, vivid violet. Relative luminance 0.040; OKLCH L 36.4% C 0.188 H 282.6°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#391B9B
RGB	rgb(57, 27, 155)
HSL	hsl(254, 70%, 36%)
HSV	hsv(254, 83%, 61%)
CMYK	cmyk(63.2%, 82.6%, 0%, 39.2%)
CIE-LAB	lab(23.74, 47.79, -63.57)
CIE-LCH	lch(23.74, 79.53, 306.94°)
OKLab	oklab(36.43% 0.0408 -0.1834)
OKLCH	oklch(36.43% 0.188 282.6)
XYZ	xyz(7.9938, 4.0197, 31.3586)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391B9B #7D9B1B

analogous

#1B3D9B #391B9B #791B9B

triadic

#391B9B #9B391B #1B9B39

tetradic

#391B9B #9B1B3D #7D9B1B #1B9B79

square

#391B9B #9B1B3D #7D9B1B #1B9B79

split-complementary

#391B9B #9B791B #3D9B1B

monochromatic

#130933 #261267 #391B9B #4C24CF #7250E0

Accessibility & contrast

On white

11.64

#391B9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#391B9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391B9B

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391B9B	#FFFFFF	#000000	##FFFFFF
##391B9B	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9E

Deuteranopia (green-blind)

#003499

Tritanopia (blue-blind)

#00435C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #391b9b;
/* rgb */ color: rgb(57, 27, 155);
/* oklch */ color: oklch(36.4% 0.188 282.6);

Tailwind

colors: {
  custom: {
    50: '#7d5dba',
    500: '#391b9b',
    950: '#000000',
  },
}

SCSS

$custom: #391b9b;
$custom-light: #7d5dba;
$custom-dark: #000000;

JSON

{
  "hex": "#391b9b",
  "rgb": {
    "r": 57,
    "g": 27,
    "b": 155
  },
  "hsl": {
    "h": 254.063,
    "s": 70.33,
    "l": 35.686
  },
  "oklch": {
    "l": 0.36425,
    "c": 0.18784,
    "h": 282.6
  },
  "luminance": 0.0402
}

Semantic roles & 50–950 ramp

primary

#391B9B

secondary

#A8C34F

accent

#ED3BC3

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #391B9B

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

Preview Lab → · Contrast checker → · Palette generator →