#57188B#57188B

#57188B is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.9% C 0.174 H 303.5°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).

Color values

HEX	#57188B
RGB	rgb(87, 24, 139)
HSL	hsl(273, 71%, 32%)
HSV	hsv(273, 83%, 55%)
CMYK	cmyk(37.4%, 82.7%, 0%, 45.5%)
CIE-LAB	lab(25.39, 48.77, -50.82)
CIE-LCH	lch(25.39, 70.44, 313.82°)
OKLab	oklab(37.92% 0.0959 -0.145)
OKLCH	oklch(37.92% 0.174 303.5)
XYZ	xyz(8.9162, 4.5436, 24.8284)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.63

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57188B #4C8B18

analogous

#1E188B #57188B #8B1885

triadic

#57188B #8B5718 #188B57

tetradic

#57188B #8B1E18 #4C8B18 #18858B

square

#57188B #8B1E18 #4C8B18 #18858B

split-complementary

#57188B #858B18 #188B1E

monochromatic

#160623 #360F57 #57188B #7821BF #963FDE

Accessibility & contrast

On white

11.00

#57188B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#57188B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #57188B

11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57188B	#FFFFFF	#000000	##FFFFFF
##57188B	1.00	11.00	1.91	11.00
#FFFFFF	11.00	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8E

Deuteranopia (green-blind)

#003C89

Tritanopia (blue-blind)

#4C3852

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #57188b;
/* rgb */ color: rgb(87, 24, 139);
/* oklch */ color: oklch(37.9% 0.174 303.5);

Tailwind

colors: {
  custom: {
    50: '#8c5eae',
    500: '#57188b',
    950: '#000000',
  },
}

SCSS

$custom: #57188b;
$custom-light: #8c5eae;
$custom-dark: #000000;

JSON

{
  "hex": "#57188b",
  "rgb": {
    "r": 87,
    "g": 24,
    "b": 139
  },
  "hsl": {
    "h": 272.87,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37917,
    "c": 0.1739,
    "h": 303.5
  },
  "luminance": 0.04544
}

Semantic roles & 50–950 ramp

primary

#57188B

secondary

#79BE40

accent

#ED3A8B

background

#F9F5FA

surface

#F1E9F4

border

#CBC5CE

text

#0D0510

muted

#7E797F

Preview Lab

Preview with #57188B

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

Preview Lab → · Contrast checker → · Palette generator →