#581C8B#581C8B

#581C8B is a dark, vivid violet. Relative luminance 0.048; OKLCH L 38.4% C 0.170 H 303.6°. Best body text is #FFFFFF at 10.75:1 contrast (WCAG AA passes).

Color values

HEX	#581C8B
RGB	rgb(88, 28, 139)
HSL	hsl(272, 66%, 33%)
HSV	hsv(272, 80%, 55%)
CMYK	cmyk(36.7%, 79.9%, 0%, 45.5%)
CIE-LAB	lab(26.07, 47.40, -49.71)
CIE-LCH	lch(26.07, 68.69, 313.64°)
OKLab	oklab(38.42% 0.0942 -0.1418)
OKLCH	oklch(38.42% 0.17 303.6)
XYZ	xyz(9.0989, 4.7693, 24.8623)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581C8B #4F8B1C

analogous

#201C8B #581C8B #8B1C87

triadic

#581C8B #8B581C #1C8B58

tetradic

#581C8B #8B201C #4F8B1C #1C878B

square

#581C8B #8B201C #4F8B1C #1C878B

split-complementary

#581C8B #878B1C #1C8B20

monochromatic

#180725 #381258 #581C8B #7826BE #9747DA

Accessibility & contrast

On white

10.75

#581C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#581C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581C8B

10.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581C8B	#FFFFFF	#000000	##FFFFFF
##581C8B	1.00	10.75	1.95	10.75
#FFFFFF	10.75	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8E

Deuteranopia (green-blind)

#003D89

Tritanopia (blue-blind)

#4E3953

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #581c8b;
/* rgb */ color: rgb(88, 28, 139);
/* oklch */ color: oklch(38.4% 0.170 303.6);

Tailwind

colors: {
  custom: {
    50: '#8d60ae',
    500: '#581c8b',
    950: '#000000',
  },
}

SCSS

$custom: #581c8b;
$custom-light: #8d60ae;
$custom-dark: #000000;

JSON

{
  "hex": "#581c8b",
  "rgb": {
    "r": 88,
    "g": 28,
    "b": 139
  },
  "hsl": {
    "h": 272.432,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.38418,
    "c": 0.1702,
    "h": 303.6
  },
  "luminance": 0.04769
}

Semantic roles & 50–950 ramp

primary

#581C8B

secondary

#7DBC47

accent

#E93E8D

background

#F9F5FA

surface

#F1EAF4

border

#CBC6CE

text

#0D0510

muted

#7E797F

Preview Lab

Preview with #581C8B

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

Preview Lab → · Contrast checker → · Palette generator →