#581B7D#581B7D

#581B7D is a dark, vivid violet. Relative luminance 0.043; OKLCH L 37.1% C 0.157 H 308.9°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#581B7D
RGB	rgb(88, 27, 125)
HSL	hsl(277, 64%, 30%)
HSV	hsv(277, 78%, 49%)
CMYK	cmyk(29.6%, 78.4%, 0%, 51%)
CIE-LAB	lab(24.76, 44.49, -43.04)
CIE-LCH	lch(24.76, 61.90, 315.94°)
OKLab	oklab(37.14% 0.0985 -0.1222)
OKLCH	oklch(37.14% 0.157 308.9)
XYZ	xyz(8.1173, 4.3394, 19.8080)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.53

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B7D #407D1B

analogous

#271B7D #581B7D #7D1B71

triadic

#581B7D #7D581B #1B7D58

tetradic

#581B7D #7D271B #407D1B #1B717D

square

#581B7D #7D271B #407D1B #1B717D

split-complementary

#581B7D #717D1B #1B7D27

monochromatic

#120519 #35104B #581B7D #7B26AF #9C3DD5

Accessibility & contrast

On white

11.24

#581B7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#581B7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B7D

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B7D	#FFFFFF	#000000	##FFFFFF
##581B7D	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003880

Deuteranopia (green-blind)

#003B7B

Tritanopia (blue-blind)

#52334B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #581b7d;
/* rgb */ color: rgb(88, 27, 125);
/* oklch */ color: oklch(37.1% 0.157 308.9);

Tailwind

colors: {
  custom: {
    50: '#8b5fa3',
    500: '#581b7d',
    950: '#000000',
  },
}

SCSS

$custom: #581b7d;
$custom-light: #8b5fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#581b7d",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 125
  },
  "hsl": {
    "h": 277.347,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.3714,
    "c": 0.15692,
    "h": 308.9
  },
  "luminance": 0.04339
}

Semantic roles & 50–950 ramp

primary

#581B7D

secondary

#6CB143

accent

#E7407F

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #581B7D

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

Preview Lab → · Contrast checker → · Palette generator →