#391D78#391D78

#391D78 is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.0% C 0.144 H 290.3°. Best body text is #FFFFFF at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#391D78
RGB	rgb(57, 29, 120)
HSL	hsl(258, 61%, 29%)
HSV	hsv(258, 76%, 47%)
CMYK	cmyk(52.5%, 75.8%, 0%, 52.9%)
CIE-LAB	lab(20.46, 36.44, -47.06)
CIE-LCH	lch(20.46, 59.52, 307.75°)
OKLab	oklab(33.05% 0.05 -0.1351)
OKLCH	oklch(33.05% 0.144 290.3)
XYZ	xyz(5.5159, 3.1044, 18.0742)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391D78 #5C781D

analogous

#1D2E78 #391D78 #671D78

triadic

#391D78 #78391D #1D7839

tetradic

#391D78 #781D2E #5C781D #1D7867

square

#391D78 #781D2E #5C781D #1D7867

split-complementary

#391D78 #78671D #2E781D

monochromatic

#0C0619 #221147 #391D78 #5029A9 #6C3FD1

Accessibility & contrast

On white

12.95

#391D78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#391D78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391D78

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391D78	#FFFFFF	#000000	##FFFFFF
##391D78	1.00	12.95	1.62	12.95
#FFFFFF	12.95	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337B

Deuteranopia (green-blind)

#002F76

Tritanopia (blue-blind)

#233549

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #391d78;
/* rgb */ color: rgb(57, 29, 120);
/* oklch */ color: oklch(33.0% 0.144 290.3);

Tailwind

colors: {
  custom: {
    50: '#775ca0',
    500: '#391d78',
    950: '#000000',
  },
}

SCSS

$custom: #391d78;
$custom-light: #775ca0;
$custom-dark: #000000;

JSON

{
  "hex": "#391d78",
  "rgb": {
    "r": 57,
    "g": 29,
    "b": 120
  },
  "hsl": {
    "h": 258.462,
    "s": 61.074,
    "l": 29.216
  },
  "oklch": {
    "l": 0.33048,
    "c": 0.14408,
    "h": 290.3
  },
  "luminance": 0.03105
}

Semantic roles & 50–950 ramp

primary

#391D78

secondary

#8CAC45

accent

#E444B3

background

#F7F5F9

surface

#EEE9F2

border

#C9C5CC

text

#09040F

muted

#7B797E

Preview Lab

Preview with #391D78

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

Preview Lab → · Contrast checker → · Palette generator →