#491B78#491B78

#491B78 is a dark, vivid violet. Relative luminance 0.036; OKLCH L 34.7% C 0.148 H 301.4°. Best body text is #FFFFFF at 12.27:1 contrast (WCAG AA passes).

Color values

HEX	#491B78
RGB	rgb(73, 27, 120)
HSL	hsl(270, 63%, 29%)
HSV	hsv(270, 78%, 47%)
CMYK	cmyk(39.2%, 77.5%, 0%, 52.9%)
CIE-LAB	lab(22.15, 40.34, -44.21)
CIE-LCH	lch(22.15, 59.85, 312.38°)
OKLab	oklab(34.7% 0.0772 -0.1262)
OKLCH	oklch(34.7% 0.148 301.4)
XYZ	xyz(6.5289, 3.5564, 18.1081)
Luminance	0.0356 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.83

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#491B78 #4A781B

analogous

#1B1C78 #491B78 #781B78

triadic

#491B78 #78491B #1B7849

tetradic

#491B78 #781B1C #4A781B #1B7878

square

#491B78 #781B1C #4A781B #1B7878

split-complementary

#491B78 #78781B #1C781B

monochromatic

#0F0619 #2B1046 #491B78 #6726AA #863BD3

Accessibility & contrast

On white

12.27

#491B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#491B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #491B78

12.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##491B78	#FFFFFF	#000000	##FFFFFF
##491B78	1.00	12.27	1.71	12.27
#FFFFFF	12.27	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347B

Deuteranopia (green-blind)

#003476

Tritanopia (blue-blind)

#3F3348

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #491b78;
/* rgb */ color: rgb(73, 27, 120);
/* oklch */ color: oklch(34.7% 0.148 301.4);

Tailwind

colors: {
  custom: {
    50: '#815ca0',
    500: '#491b78',
    950: '#000000',
  },
}

SCSS

$custom: #491b78;
$custom-light: #815ca0;
$custom-dark: #000000;

JSON

{
  "hex": "#491b78",
  "rgb": {
    "r": 73,
    "g": 27,
    "b": 120
  },
  "hsl": {
    "h": 269.677,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.347,
    "c": 0.14789,
    "h": 301.4
  },
  "luminance": 0.03556
}

Semantic roles & 50–950 ramp

primary

#491B78

secondary

#78AC43

accent

#E64195

background

#F8F5F9

surface

#EFE9F2

border

#CAC5CC

text

#0B040F

muted

#7C797E

Preview Lab

Preview with #491B78

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

Preview Lab → · Contrast checker → · Palette generator →