#391CB4#391CB4

#391CB4 is a dark, highly saturated violet. Relative luminance 0.050; OKLCH L 39.3% C 0.215 H 278.5°. Best body text is #FFFFFF at 10.50:1 contrast (WCAG AA passes).

Color values

HEX	#391CB4
RGB	rgb(57, 28, 180)
HSL	hsl(251, 73%, 41%)
HSV	hsv(251, 84%, 71%)
CMYK	cmyk(68.3%, 84.4%, 0%, 29.4%)
CIE-LAB	lab(26.72, 54.54, -73.75)
CIE-LCH	lch(26.72, 91.72, 306.48°)
OKLab	oklab(39.31% 0.032 -0.213)
OKLCH	oklch(39.31% 0.215 278.5)
XYZ	xyz(10.3382, 4.9948, 43.5904)
Luminance	0.0500 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391CB4 #97B41C

analogous

#1C4BB4 #391CB4 #851CB4

triadic

#391CB4 #B4391C #1CB439

tetradic

#391CB4 #B41C4B #97B41C #1CB485

square

#391CB4 #B41C4B #97B41C #1CB485

split-complementary

#391CB4 #B4851C #4BB41C

monochromatic

#170C4A #28147F #391CB4 #502FDF #7D64E7

Accessibility & contrast

On white

10.50

#391CB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#391CB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391CB4

10.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391CB4	#FFFFFF	#000000	##FFFFFF
##391CB4	1.00	10.50	2.00	10.50
#FFFFFF	10.50	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045B8

Deuteranopia (green-blind)

#0039B1

Tritanopia (blue-blind)

#004D6B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #391cb4;
/* rgb */ color: rgb(57, 28, 180);
/* oklch */ color: oklch(39.3% 0.215 278.5);

Tailwind

colors: {
  custom: {
    50: '#825fcc',
    500: '#391cb4',
    950: '#000000',
  },
}

SCSS

$custom: #391cb4;
$custom-light: #825fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#391cb4",
  "rgb": {
    "r": 57,
    "g": 28,
    "b": 180
  },
  "hsl": {
    "h": 251.447,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.39307,
    "c": 0.21536,
    "h": 278.5
  },
  "luminance": 0.04996
}

Semantic roles & 50–950 ramp

primary

#391CB4

secondary

#B7CC60

accent

#F038CD

background

#F8F5FC

surface

#F0EAF9

border

#CBC6D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #391CB4

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

Preview Lab → · Contrast checker → · Palette generator →