#581B7B#581B7B

#581B7B is a dark, vivid violet. Relative luminance 0.043; OKLCH L 37.0% C 0.155 H 309.7°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#581B7B
RGB	rgb(88, 27, 123)
HSL	hsl(278, 64%, 29%)
HSV	hsv(278, 78%, 48%)
CMYK	cmyk(28.5%, 78%, 0%, 51.8%)
CIE-LAB	lab(24.60, 44.02, -42.03)
CIE-LCH	lch(24.60, 60.87, 316.32°)
OKLab	oklab(36.98% 0.0989 -0.1192)
OKLCH	oklch(36.98% 0.155 309.7)
XYZ	xyz(7.9909, 4.2888, 19.1419)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B7B #3E7B1B

analogous

#281B7B #581B7B #7B1B6E

triadic

#581B7B #7B581B #1B7B58

tetradic

#581B7B #7B281B #3E7B1B #1B6E7B

square

#581B7B #7B281B #3E7B1B #1B6E7B

split-complementary

#581B7B #6E7B1B #1B7B28

monochromatic

#120619 #341049 #581B7B #7C26AD #9D3CD4

Accessibility & contrast

On white

11.30

#581B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#581B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B7B

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B7B	#FFFFFF	#000000	##FFFFFF
##581B7B	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387E

Deuteranopia (green-blind)

#003B79

Tritanopia (blue-blind)

#53324A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #581b7b;
/* rgb */ color: rgb(88, 27, 123);
/* oklch */ color: oklch(37.0% 0.155 309.7);

Tailwind

colors: {
  custom: {
    50: '#8b5ea2',
    500: '#581b7b',
    950: '#000000',
  },
}

SCSS

$custom: #581b7b;
$custom-light: #8b5ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#581b7b",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 123
  },
  "hsl": {
    "h": 278.125,
    "s": 64,
    "l": 29.412
  },
  "oklch": {
    "l": 0.36978,
    "c": 0.15488,
    "h": 309.7
  },
  "luminance": 0.04289
}

Semantic roles & 50–950 ramp

primary

#581B7B

secondary

#6AAF43

accent

#E7417D

background

#F8F5FA

surface

#F0E9F3

border

#CBC5CD

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #581B7B

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

Preview Lab → · Contrast checker → · Palette generator →