#391C64#391C64

#391C64 is a dark, vivid violet. Relative luminance 0.026; OKLCH L 31.1% C 0.120 H 297.4°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#391C64
RGB	rgb(57, 28, 100)
HSL	hsl(264, 56%, 25%)
HSV	hsv(264, 72%, 39%)
CMYK	cmyk(43%, 72%, 0%, 60.8%)
CIE-LAB	lab(18.45, 31.05, -37.35)
CIE-LCH	lch(18.45, 48.57, 309.74°)
OKLab	oklab(31.06% 0.0552 -0.1066)
OKLCH	oklch(31.06% 0.12 297.4)
XYZ	xyz(4.4023, 2.6204, 12.3280)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 5.70

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391C64 #47641C

analogous

#1C2364 #391C64 #5D1C64

triadic

#391C64 #64391C #1C6439

tetradic

#391C64 #641C23 #47641C #1C645D

square

#391C64 #641C23 #47641C #1C645D

split-complementary

#391C64 #645D1C #23641C

monochromatic

#0E0718 #1E0F34 #391C64 #542994 #7037C4

Accessibility & contrast

On white

13.78

#391C64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#391C64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391C64

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391C64	#FFFFFF	#000000	##FFFFFF
##391C64	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D66

Deuteranopia (green-blind)

#002C63

Tritanopia (blue-blind)

#2E2D3D

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #391c64;
/* rgb */ color: rgb(57, 28, 100);
/* oklch */ color: oklch(31.1% 0.120 297.4);

Tailwind

colors: {
  custom: {
    50: '#745a91',
    500: '#391c64',
    950: '#000000',
  },
}

SCSS

$custom: #391c64;
$custom-light: #745a91;
$custom-dark: #000000;

JSON

{
  "hex": "#391c64",
  "rgb": {
    "r": 57,
    "g": 28,
    "b": 100
  },
  "hsl": {
    "h": 264.167,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.31064,
    "c": 0.12005,
    "h": 297.4
  },
  "luminance": 0.0262
}

Semantic roles & 50–950 ramp

primary

#391C64

secondary

#769943

accent

#E048A3

background

#F7F5F8

surface

#EDE9F0

border

#C8C5CB

text

#08040D

muted

#7B797D

Preview Lab

Preview with #391C64

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

Preview Lab → · Contrast checker → · Palette generator →