#391D7B#391D7B

#391D7B is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.3% C 0.148 H 289.5°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#391D7B
RGB	rgb(57, 29, 123)
HSL	hsl(258, 62%, 30%)
HSV	hsv(258, 76%, 48%)
CMYK	cmyk(53.7%, 76.4%, 0%, 51.8%)
CIE-LAB	lab(20.74, 37.34, -48.50)
CIE-LCH	lch(20.74, 61.21, 307.59°)
OKLab	oklab(33.34% 0.0492 -0.1394)
OKLCH	oklch(33.34% 0.148 289.5)
XYZ	xyz(5.7008, 3.1784, 19.0482)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391D7B #5F7B1D

analogous

#1D307B #391D7B #681D7B

triadic

#391D7B #7B391D #1D7B39

tetradic

#391D7B #7B1D30 #5F7B1D #1D7B68

square

#391D7B #7B1D30 #5F7B1D #1D7B68

split-complementary

#391D7B #7B681D #307B1D

monochromatic

#0B0619 #221149 #391D7B #5029AD #6C40D2

Accessibility & contrast

On white

12.84

#391D7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#391D7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391D7B

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391D7B	#FFFFFF	#000000	##FFFFFF
##391D7B	1.00	12.84	1.64	12.84
#FFFFFF	12.84	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347E

Deuteranopia (green-blind)

#003079

Tritanopia (blue-blind)

#21364A

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #391d7b;
/* rgb */ color: rgb(57, 29, 123);
/* oklch */ color: oklch(33.3% 0.148 289.5);

Tailwind

colors: {
  custom: {
    50: '#775ca2',
    500: '#391d7b',
    950: '#000000',
  },
}

SCSS

$custom: #391d7b;
$custom-light: #775ca2;
$custom-dark: #000000;

JSON

{
  "hex": "#391d7b",
  "rgb": {
    "r": 57,
    "g": 29,
    "b": 123
  },
  "hsl": {
    "h": 257.872,
    "s": 61.842,
    "l": 29.804
  },
  "oklch": {
    "l": 0.33339,
    "c": 0.1478,
    "h": 289.5
  },
  "luminance": 0.03179
}

Semantic roles & 50–950 ramp

primary

#391D7B

secondary

#8FAF45

accent

#E543B5

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #391D7B

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

Preview Lab → · Contrast checker → · Palette generator →