#391C66#391C66

#391C66 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.2% C 0.123 H 296.6°. Best body text is #FFFFFF at 13.71:1 contrast (WCAG AA passes).

Color values

HEX	#391C66
RGB	rgb(57, 28, 102)
HSL	hsl(264, 57%, 25%)
HSV	hsv(264, 73%, 40%)
CMYK	cmyk(44.1%, 72.5%, 0%, 60%)
CIE-LAB	lab(18.63, 31.64, -38.39)
CIE-LCH	lch(18.63, 49.74, 309.49°)
OKLab	oklab(31.24% 0.0549 -0.1097)
OKLCH	oklch(31.24% 0.123 296.6)
XYZ	xyz(4.5002, 2.6596, 12.8440)
Luminance	0.0266 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 5.74

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391C66 #49661C

analogous

#1C2466 #391C66 #5E1C66

triadic

#391C66 #66391C #1C6639

tetradic

#391C66 #661C24 #49661C #1C665E

square

#391C66 #661C24 #49661C #1C665E

split-complementary

#391C66 #665E1C #24661C

monochromatic

#0D0718 #1E0F36 #391C66 #542996 #6F36C6

Accessibility & contrast

On white

13.71

#391C66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#391C66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391C66

13.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391C66	#FFFFFF	#000000	##FFFFFF
##391C66	1.00	13.71	1.53	13.71
#FFFFFF	13.71	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E68

Deuteranopia (green-blind)

#002C64

Tritanopia (blue-blind)

#2D2E3E

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #391c66;
/* rgb */ color: rgb(57, 28, 102);
/* oklch */ color: oklch(31.2% 0.123 296.6);

Tailwind

colors: {
  custom: {
    50: '#745a92',
    500: '#391c66',
    950: '#000000',
  },
}

SCSS

$custom: #391c66;
$custom-light: #745a92;
$custom-dark: #000000;

JSON

{
  "hex": "#391c66",
  "rgb": {
    "r": 57,
    "g": 28,
    "b": 102
  },
  "hsl": {
    "h": 263.514,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.3124,
    "c": 0.12262,
    "h": 296.6
  },
  "luminance": 0.0266
}

Semantic roles & 50–950 ramp

primary

#391C66

secondary

#789B43

accent

#E048A4

background

#F7F5F9

surface

#EDE9F1

border

#C8C5CB

text

#09040D

muted

#7B797E

Preview Lab

Preview with #391C66

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

Preview Lab → · Contrast checker → · Palette generator →