#491B81#491B81

#491B81 is a dark, vivid violet. Relative luminance 0.038; OKLCH L 35.5% C 0.158 H 298.3°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#491B81
RGB	rgb(73, 27, 129)
HSL	hsl(267, 65%, 31%)
HSV	hsv(267, 79%, 51%)
CMYK	cmyk(43.4%, 79.1%, 0%, 49.4%)
CIE-LAB	lab(22.95, 42.71, -48.62)
CIE-LCH	lch(22.95, 64.72, 311.29°)
OKLab	oklab(35.51% 0.0748 -0.1391)
OKLCH	oklch(35.51% 0.158 298.3)
XYZ	xyz(7.1010, 3.7852, 21.1211)
Luminance	0.0379 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#491B81 #53811B

analogous

#1B2081 #491B81 #7C1B81

triadic

#491B81 #81491B #1B8149

tetradic

#491B81 #811B20 #53811B #1B817C

square

#491B81 #811B20 #53811B #1B817C

split-complementary

#491B81 #817C1B #20811B

monochromatic

#10061C #2C104E #491B81 #6626B4 #843FD7

Accessibility & contrast

On white

11.95

#491B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#491B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #491B81

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##491B81	#FFFFFF	#000000	##FFFFFF
##491B81	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003784

Deuteranopia (green-blind)

#00367F

Tritanopia (blue-blind)

#3B364D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #491b81;
/* rgb */ color: rgb(73, 27, 129);
/* oklch */ color: oklch(35.5% 0.158 298.3);

Tailwind

colors: {
  custom: {
    50: '#825da6',
    500: '#491b81',
    950: '#000000',
  },
}

SCSS

$custom: #491b81;
$custom-light: #825da6;
$custom-dark: #000000;

JSON

{
  "hex": "#491b81",
  "rgb": {
    "r": 73,
    "g": 27,
    "b": 129
  },
  "hsl": {
    "h": 267.059,
    "s": 65.385,
    "l": 30.588
  },
  "oklch": {
    "l": 0.35511,
    "c": 0.15795,
    "h": 298.3
  },
  "luminance": 0.03785
}

Semantic roles & 50–950 ramp

primary

#491B81

secondary

#81B543

accent

#E83F9C

background

#F8F5FA

surface

#EFE9F4

border

#CAC5CE

text

#0B040F

muted

#7C797F

Preview Lab

Preview with #491B81

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

Preview Lab → · Contrast checker → · Palette generator →