#5B178B#5B178B

#5B178B is a dark, vivid violet. Relative luminance 0.047; OKLCH L 38.4% C 0.176 H 305.8°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#5B178B
RGB	rgb(91, 23, 139)
HSL	hsl(275, 72%, 32%)
HSV	hsv(275, 83%, 55%)
CMYK	cmyk(34.5%, 83.5%, 0%, 45.5%)
CIE-LAB	lab(25.87, 49.78, -50.02)
CIE-LCH	lch(25.87, 70.57, 314.86°)
OKLab	oklab(38.37% 0.1027 -0.1425)
OKLCH	oklch(38.37% 0.176 305.8)
XYZ	xyz(9.2799, 4.7011, 24.8396)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.00

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B178B #478B17

analogous

#21178B #5B178B #8B1781

triadic

#5B178B #8B5B17 #178B5B

tetradic

#5B178B #8B2117 #478B17 #17818B

square

#5B178B #8B2117 #478B17 #17818B

split-complementary

#5B178B #818B17 #178B21

monochromatic

#160622 #390E56 #5B178B #7D20C0 #9C3DDF

Accessibility & contrast

On white

10.82

#5B178B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#5B178B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B178B

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B178B	#FFFFFF	#000000	##FFFFFF
##5B178B	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8E

Deuteranopia (green-blind)

#003D89

Tritanopia (blue-blind)

#523752

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #5b178b;
/* rgb */ color: rgb(91, 23, 139);
/* oklch */ color: oklch(38.4% 0.176 305.8);

Tailwind

colors: {
  custom: {
    50: '#8f5eae',
    500: '#5b178b',
    950: '#000000',
  },
}

SCSS

$custom: #5b178b;
$custom-light: #8f5eae;
$custom-dark: #000000;

JSON

{
  "hex": "#5b178b",
  "rgb": {
    "r": 91,
    "g": 23,
    "b": 139
  },
  "hsl": {
    "h": 275.172,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.38371,
    "c": 0.17568,
    "h": 305.8
  },
  "luminance": 0.04701
}

Semantic roles & 50–950 ramp

primary

#5B178B

secondary

#74BF3F

accent

#EE3984

background

#F9F5FA

surface

#F1EAF4

border

#CBC6CE

text

#0D0510

muted

#7E797F

Preview Lab

Preview with #5B178B

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

Preview Lab → · Contrast checker → · Palette generator →