#581B8B#581B8B

#581B8B is a dark, vivid violet. Relative luminance 0.047; OKLCH L 38.3% C 0.171 H 303.7°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#581B8B
RGB	rgb(88, 27, 139)
HSL	hsl(273, 67%, 33%)
HSV	hsv(273, 81%, 55%)
CMYK	cmyk(36.7%, 80.6%, 0%, 45.5%)
CIE-LAB	lab(25.93, 47.80, -49.94)
CIE-LCH	lch(25.93, 69.13, 313.75°)
OKLab	oklab(38.32% 0.095 -0.1424)
OKLCH	oklch(38.32% 0.171 303.7)
XYZ	xyz(9.0755, 4.7227, 24.8545)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B8B #4E8B1B

analogous

#201B8B #581B8B #8B1B86

triadic

#581B8B #8B581B #1B8B58

tetradic

#581B8B #8B201B #4E8B1B #1B868B

square

#581B8B #8B201B #4E8B1B #1B868B

split-complementary

#581B8B #868B1B #1B8B20

monochromatic

#170725 #381158 #581B8B #7825BE #9745DB

Accessibility & contrast

On white

10.80

#581B8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#581B8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B8B

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B8B	#FFFFFF	#000000	##FFFFFF
##581B8B	1.00	10.80	1.94	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8E

Deuteranopia (green-blind)

#003D89

Tritanopia (blue-blind)

#4E3953

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #581b8b;
/* rgb */ color: rgb(88, 27, 139);
/* oklch */ color: oklch(38.3% 0.171 303.7);

Tailwind

colors: {
  custom: {
    50: '#8d5fae',
    500: '#581b8b',
    950: '#000000',
  },
}

SCSS

$custom: #581b8b;
$custom-light: #8d5fae;
$custom-dark: #000000;

JSON

{
  "hex": "#581b8b",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 139
  },
  "hsl": {
    "h": 272.679,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.38322,
    "c": 0.17121,
    "h": 303.7
  },
  "luminance": 0.04723
}

Semantic roles & 50–950 ramp

primary

#581B8B

secondary

#7CBC45

accent

#EA3D8C

background

#F9F5FA

surface

#F1EAF4

border

#CBC6CE

text

#0D0510

muted

#7E797F

Preview Lab

Preview with #581B8B

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

Preview Lab → · Contrast checker → · Palette generator →