#581D8B#581D8B

#581D8B is a dark, vivid violet. Relative luminance 0.048; OKLCH L 38.5% C 0.169 H 303.5°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#581D8B
RGB	rgb(88, 29, 139)
HSL	hsl(272, 65%, 33%)
HSV	hsv(272, 79%, 55%)
CMYK	cmyk(36.7%, 79.1%, 0%, 45.5%)
CIE-LAB	lab(26.21, 47.00, -49.48)
CIE-LCH	lch(26.21, 68.24, 313.52°)
OKLab	oklab(38.52% 0.0933 -0.1411)
OKLCH	oklch(38.52% 0.169 303.5)
XYZ	xyz(9.1230, 4.8175, 24.8703)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581D8B #508B1D

analogous

#211D8B #581D8B #8B1D87

triadic

#581D8B #8B581D #1D8B58

tetradic

#581D8B #8B211D #508B1D #1D878B

square

#581D8B #8B211D #508B1D #1D878B

split-complementary

#581D8B #878B1D #1D8B21

monochromatic

#180826 #381258 #581D8B #7828BE #9649D9

Accessibility & contrast

On white

10.69

#581D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#581D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581D8B

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581D8B	#FFFFFF	#000000	##FFFFFF
##581D8B	1.00	10.69	1.96	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8E

Deuteranopia (green-blind)

#003E89

Tritanopia (blue-blind)

#4E3A53

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #581d8b;
/* rgb */ color: rgb(88, 29, 139);
/* oklch */ color: oklch(38.5% 0.169 303.5);

Tailwind

colors: {
  custom: {
    50: '#8c60ae',
    500: '#581d8b',
    950: '#000000',
  },
}

SCSS

$custom: #581d8b;
$custom-light: #8c60ae;
$custom-dark: #000000;

JSON

{
  "hex": "#581d8b",
  "rgb": {
    "r": 88,
    "g": 29,
    "b": 139
  },
  "hsl": {
    "h": 272.182,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.38517,
    "c": 0.16916,
    "h": 303.5
  },
  "luminance": 0.04818
}

Semantic roles & 50–950 ramp

primary

#581D8B

secondary

#7EBB49

accent

#E83F8E

background

#F9F5FA

surface

#F1EAF4

border

#CBC6CE

text

#0D0510

muted

#7E797F

Preview Lab

Preview with #581D8B

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

Preview Lab → · Contrast checker → · Palette generator →