#391B8D#391B8D

#391B8D is a dark, vivid violet. Relative luminance 0.036; OKLCH L 34.9% C 0.172 H 285.4°. Best body text is #FFFFFF at 12.24:1 contrast (WCAG AA passes).

Color values

HEX	#391B8D
RGB	rgb(57, 27, 141)
HSL	hsl(256, 68%, 33%)
HSV	hsv(256, 81%, 55%)
CMYK	cmyk(59.6%, 80.9%, 0%, 44.7%)
CIE-LAB	lab(22.22, 43.70, -57.42)
CIE-LCH	lch(22.22, 72.16, 307.27°)
OKLab	oklab(34.92% 0.0455 -0.1654)
OKLCH	oklch(34.92% 0.172 285.4)
XYZ	xyz(6.8855, 3.5764, 25.5216)
Luminance	0.0358 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391B8D #6F8D1B

analogous

#1B368D #391B8D #721B8D

triadic

#391B8D #8D391B #1B8D39

tetradic

#391B8D #8D1B36 #6F8D1B #1B8D72

square

#391B8D #8D1B36 #6F8D1B #1B8D72

split-complementary

#391B8D #8D721B #368D1B

monochromatic

#0F0726 #24115A #391B8D #4E25C0 #6E47DC

Accessibility & contrast

On white

12.24

#391B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#391B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391B8D

12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391B8D	#FFFFFF	#000000	##FFFFFF
##391B8D	1.00	12.24	1.72	12.24
#FFFFFF	12.24	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003890

Deuteranopia (green-blind)

#00328B

Tritanopia (blue-blind)

#0A3D54

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #391b8d;
/* rgb */ color: rgb(57, 27, 141);
/* oklch */ color: oklch(34.9% 0.172 285.4);

Tailwind

colors: {
  custom: {
    50: '#7a5caf',
    500: '#391b8d',
    950: '#000000',
  },
}

SCSS

$custom: #391b8d;
$custom-light: #7a5caf;
$custom-dark: #000000;

JSON

{
  "hex": "#391b8d",
  "rgb": {
    "r": 57,
    "g": 27,
    "b": 141
  },
  "hsl": {
    "h": 255.789,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.34923,
    "c": 0.17157,
    "h": 285.4
  },
  "luminance": 0.03577
}

Semantic roles & 50–950 ramp

primary

#391B8D

secondary

#9EBD46

accent

#EB3DBD

background

#F8F5FA

surface

#EFE9F5

border

#CAC5CF

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #391B8D

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

Preview Lab → · Contrast checker → · Palette generator →