#391B63#391B63

#391B63 is a dark, vivid violet. Relative luminance 0.026; OKLCH L 30.8% C 0.120 H 298.1°. Best body text is #FFFFFF at 13.90:1 contrast (WCAG AA passes).

Color values

HEX	#391B63
RGB	rgb(57, 27, 99)
HSL	hsl(265, 57%, 25%)
HSV	hsv(265, 73%, 39%)
CMYK	cmyk(42.4%, 72.7%, 0%, 61.2%)
CIE-LAB	lab(18.16, 31.33, -37.16)
CIE-LCH	lch(18.16, 48.61, 310.13°)
OKLab	oklab(30.83% 0.0565 -0.1061)
OKLCH	oklch(30.83% 0.12 298.1)
XYZ	xyz(4.3308, 2.5545, 12.0669)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 5.56

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391B63 #45631B

analogous

#1B2163 #391B63 #5D1B63

triadic

#391B63 #63391B #1B6339

tetradic

#391B63 #631B21 #45631B #1B635D

square

#391B63 #631B21 #45631B #1B635D

split-complementary

#391B63 #635D1B #21631B

monochromatic

#0E0718 #1D0E33 #391B63 #552893 #7035C3

Accessibility & contrast

On white

13.90

#391B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#391B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391B63

13.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391B63	#FFFFFF	#000000	##FFFFFF
##391B63	1.00	13.90	1.51	13.90
#FFFFFF	13.90	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C65

Deuteranopia (green-blind)

#002C62

Tritanopia (blue-blind)

#2F2C3C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #391b63;
/* rgb */ color: rgb(57, 27, 99);
/* oklch */ color: oklch(30.8% 0.120 298.1);

Tailwind

colors: {
  custom: {
    50: '#745a90',
    500: '#391b63',
    950: '#000000',
  },
}

SCSS

$custom: #391b63;
$custom-light: #745a90;
$custom-dark: #000000;

JSON

{
  "hex": "#391b63",
  "rgb": {
    "r": 57,
    "g": 27,
    "b": 99
  },
  "hsl": {
    "h": 265,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.30829,
    "c": 0.12018,
    "h": 298.1
  },
  "luminance": 0.02555
}

Semantic roles & 50–950 ramp

primary

#391B63

secondary

#749841

accent

#E047A1

background

#F7F5F8

surface

#EDE9F0

border

#C8C5CB

text

#08040C

muted

#7B797D

Preview Lab

Preview with #391B63

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

Preview Lab → · Contrast checker → · Palette generator →