#581B7E#581B7E

#581B7E is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.2% C 0.158 H 308.5°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#581B7E
RGB	rgb(88, 27, 126)
HSL	hsl(277, 65%, 30%)
HSV	hsv(277, 79%, 49%)
CMYK	cmyk(30.2%, 78.6%, 0%, 50.6%)
CIE-LAB	lab(24.84, 44.72, -43.55)
CIE-LCH	lch(24.84, 62.42, 315.76°)
OKLab	oklab(37.22% 0.0983 -0.1236)
OKLCH	oklch(37.22% 0.158 308.5)
XYZ	xyz(8.1816, 4.3651, 20.1462)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.44

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B7E #417E1B

analogous

#271B7E #581B7E #7E1B72

triadic

#581B7E #7E581B #1B7E58

tetradic

#581B7E #7E271B #417E1B #1B727E

square

#581B7E #7E271B #417E1B #1B727E

split-complementary

#581B7E #727E1B #1B7E27

monochromatic

#120519 #35104C #581B7E #7B26B0 #9B3ED6

Accessibility & contrast

On white

11.21

#581B7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#581B7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B7E

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B7E	#FFFFFF	#000000	##FFFFFF
##581B7E	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003981

Deuteranopia (green-blind)

#003C7C

Tritanopia (blue-blind)

#52334C

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #581b7e;
/* rgb */ color: rgb(88, 27, 126);
/* oklch */ color: oklch(37.2% 0.158 308.5);

Tailwind

colors: {
  custom: {
    50: '#8b5fa4',
    500: '#581b7e',
    950: '#000000',
  },
}

SCSS

$custom: #581b7e;
$custom-light: #8b5fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#581b7e",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 126
  },
  "hsl": {
    "h": 276.97,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.37222,
    "c": 0.15794,
    "h": 308.5
  },
  "luminance": 0.04365
}

Semantic roles & 50–950 ramp

primary

#581B7E

secondary

#6EB243

accent

#E84080

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #581B7E

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

Preview Lab → · Contrast checker → · Palette generator →