#57178D#57178D

#57178D is a dark, vivid violet. Relative luminance 0.046; OKLCH L 38.0% C 0.177 H 302.9°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#57178D
RGB	rgb(87, 23, 141)
HSL	hsl(273, 72%, 32%)
HSV	hsv(273, 84%, 55%)
CMYK	cmyk(38.3%, 83.7%, 0%, 44.7%)
CIE-LAB	lab(25.45, 49.60, -51.97)
CIE-LCH	lch(25.45, 71.85, 313.66°)
OKLab	oklab(38.01% 0.0961 -0.1484)
OKLCH	oklch(38.01% 0.177 302.9)
XYZ	xyz(9.0434, 4.5621, 25.5983)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.61

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57178D #4D8D17

analogous

#1C178D #57178D #8D1788

triadic

#57178D #8D5717 #178D57

tetradic

#57178D #8D1C17 #4D8D17 #17888D

square

#57178D #8D1C17 #4D8D17 #17888D

split-complementary

#57178D #888D17 #178D1C

monochromatic

#160624 #370E58 #57178D #7720C2 #963FE0

Accessibility & contrast

On white

10.98

#57178D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#57178D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #57178D

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57178D	#FFFFFF	#000000	##FFFFFF
##57178D	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B90

Deuteranopia (green-blind)

#003C8B

Tritanopia (blue-blind)

#4C3853

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #57178d;
/* rgb */ color: rgb(87, 23, 141);
/* oklch */ color: oklch(38.0% 0.177 302.9);

Tailwind

colors: {
  custom: {
    50: '#8c5eaf',
    500: '#57178d',
    950: '#000000',
  },
}

SCSS

$custom: #57178d;
$custom-light: #8c5eaf;
$custom-dark: #000000;

JSON

{
  "hex": "#57178d",
  "rgb": {
    "r": 87,
    "g": 23,
    "b": 141
  },
  "hsl": {
    "h": 272.542,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.38011,
    "c": 0.17679,
    "h": 302.9
  },
  "luminance": 0.04562
}

Semantic roles & 50–950 ramp

primary

#57178D

secondary

#7AC040

accent

#EF398C

background

#F9F5FA

surface

#F1E9F5

border

#CBC5CF

text

#0D0510

muted

#7E797F

Preview Lab

Preview with #57178D

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

Preview Lab → · Contrast checker → · Palette generator →