#391B71#391B71

#391B71 is a dark, vivid violet. Relative luminance 0.028; OKLCH L 32.1% C 0.138 H 292.9°. Best body text is #FFFFFF at 13.38:1 contrast (WCAG AA passes).

Color values

HEX	#391B71
RGB	rgb(57, 27, 113)
HSL	hsl(261, 61%, 27%)
HSV	hsv(261, 76%, 44%)
CMYK	cmyk(49.6%, 76.1%, 0%, 55.7%)
CIE-LAB	lab(19.42, 35.43, -44.26)
CIE-LCH	lch(19.42, 56.70, 308.67°)
OKLab	oklab(32.11% 0.0536 -0.1269)
OKLCH	oklch(32.11% 0.138 292.9)
XYZ	xyz(5.0591, 2.8458, 15.9023)
Luminance	0.0285 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391B71 #53711B

analogous

#1B2871 #391B71 #641B71

triadic

#391B71 #71391B #1B7139

tetradic

#391B71 #711B28 #53711B #1B7164

square

#391B71 #711B28 #53711B #1B7164

split-complementary

#391B71 #71641B #28711B

monochromatic

#0C0619 #200F40 #391B71 #5227A2 #6C37CF

Accessibility & contrast

On white

13.38

#391B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#391B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391B71

13.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391B71	#FFFFFF	#000000	##FFFFFF
##391B71	1.00	13.38	1.57	13.38
#FFFFFF	13.38	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003073

Deuteranopia (green-blind)

#002D6F

Tritanopia (blue-blind)

#283244

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #391b71;
/* rgb */ color: rgb(57, 27, 113);
/* oklch */ color: oklch(32.1% 0.138 292.9);

Tailwind

colors: {
  custom: {
    50: '#765a9b',
    500: '#391b71',
    950: '#000000',
  },
}

SCSS

$custom: #391b71;
$custom-light: #765a9b;
$custom-dark: #000000;

JSON

{
  "hex": "#391b71",
  "rgb": {
    "r": 57,
    "g": 27,
    "b": 113
  },
  "hsl": {
    "h": 260.93,
    "s": 61.429,
    "l": 27.451
  },
  "oklch": {
    "l": 0.32109,
    "c": 0.13778,
    "h": 292.9
  },
  "luminance": 0.02846
}

Semantic roles & 50–950 ramp

primary

#391B71

secondary

#83A642

accent

#E543AC

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040E

muted

#7B797E

Preview Lab

Preview with #391B71

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

Preview Lab → · Contrast checker → · Palette generator →