#391B7C#391B7C

#391B7C is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.2% C 0.151 H 289.6°. Best body text is #FFFFFF at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#391B7C
RGB	rgb(57, 27, 124)
HSL	hsl(259, 64%, 30%)
HSV	hsv(259, 78%, 49%)
CMYK	cmyk(54%, 78.2%, 0%, 51.4%)
CIE-LAB	lab(20.47, 38.68, -49.58)
CIE-LCH	lch(20.47, 62.89, 307.96°)
OKLab	oklab(33.18% 0.0507 -0.1425)
OKLCH	oklch(33.18% 0.151 289.6)
XYZ	xyz(5.7163, 3.1087, 19.3637)
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

#391B7C #5E7C1B

analogous

#1B2D7C #391B7C #6A1B7C

triadic

#391B7C #7C391B #1B7C39

tetradic

#391B7C #7C1B2D #5E7C1B #1B7C6A

square

#391B7C #7C1B2D #5E7C1B #1B7C6A

split-complementary

#391B7C #7C6A1B #2D7C1B

monochromatic

#0C0519 #22104A #391B7C #5026AE #6C3DD5

Accessibility & contrast

On white

12.95

#391B7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#391B7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391B7C

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391B7C	#FFFFFF	#000000	##FFFFFF
##391B7C	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)

#00337F

Deuteranopia (green-blind)

#002F7A

Tritanopia (blue-blind)

#20364A

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #391b7c;
/* rgb */ color: rgb(57, 27, 124);
/* oklch */ color: oklch(33.2% 0.151 289.6);

Tailwind

colors: {
  custom: {
    50: '#775ba3',
    500: '#391b7c',
    950: '#000000',
  },
}

SCSS

$custom: #391b7c;
$custom-light: #775ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#391b7c",
  "rgb": {
    "r": 57,
    "g": 27,
    "b": 124
  },
  "hsl": {
    "h": 258.557,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.33179,
    "c": 0.15126,
    "h": 289.6
  },
  "luminance": 0.03109
}

Semantic roles & 50–950 ramp

primary

#391B7C

secondary

#8EB043

accent

#E741B4

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #391B7C

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

Preview Lab → · Contrast checker → · Palette generator →