#5B178C#5B178C

#5B178C is a dark, vivid violet. Relative luminance 0.047; OKLCH L 38.5% C 0.177 H 305.4°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#5B178C
RGB	rgb(91, 23, 140)
HSL	hsl(275, 72%, 32%)
HSV	hsv(275, 84%, 55%)
CMYK	cmyk(35%, 83.6%, 0%, 45.1%)
CIE-LAB	lab(25.95, 50.01, -50.50)
CIE-LCH	lch(25.95, 71.07, 314.72°)
OKLab	oklab(38.46% 0.1024 -0.1439)
OKLCH	oklch(38.46% 0.177 305.4)
XYZ	xyz(9.3533, 4.7305, 25.2262)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.02

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B178C #488C17

analogous

#21178C #5B178C #8C1783

triadic

#5B178C #8C5B17 #178C5B

tetradic

#5B178C #8C2117 #488C17 #17838C

square

#5B178C #8C2117 #488C17 #17838C

split-complementary

#5B178C #838C17 #178C21

monochromatic

#170623 #390E57 #5B178C #7D20C1 #9C3EDF

Accessibility & contrast

On white

10.79

#5B178C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#5B178C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B178C

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B178C	#FFFFFF	#000000	##FFFFFF
##5B178C	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8F

Deuteranopia (green-blind)

#003E8A

Tritanopia (blue-blind)

#523753

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #5b178c;
/* rgb */ color: rgb(91, 23, 140);
/* oklch */ color: oklch(38.5% 0.177 305.4);

Tailwind

colors: {
  custom: {
    50: '#8f5eae',
    500: '#5b178c',
    950: '#000000',
  },
}

SCSS

$custom: #5b178c;
$custom-light: #8f5eae;
$custom-dark: #000000;

JSON

{
  "hex": "#5b178c",
  "rgb": {
    "r": 91,
    "g": 23,
    "b": 140
  },
  "hsl": {
    "h": 274.872,
    "s": 71.779,
    "l": 31.961
  },
  "oklch": {
    "l": 0.38458,
    "c": 0.17666,
    "h": 305.4
  },
  "luminance": 0.0473
}

Semantic roles & 50–950 ramp

primary

#5B178C

secondary

#75BF3F

accent

#EF3985

background

#F9F5FA

surface

#F1EAF4

border

#CBC6CE

text

#0D0510

muted

#7E797F

Preview Lab

Preview with #5B178C

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

Preview Lab → · Contrast checker → · Palette generator →