#571B91#571B91

#571B91 is a dark, vivid violet. Relative luminance 0.049; OKLCH L 38.7% C 0.177 H 301.2°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#571B91
RGB	rgb(87, 27, 145)
HSL	hsl(271, 69%, 34%)
HSV	hsv(271, 81%, 57%)
CMYK	cmyk(40%, 81.4%, 0%, 43.1%)
CIE-LAB	lab(26.32, 49.09, -53.04)
CIE-LCH	lch(26.32, 72.27, 312.79°)
OKLab	oklab(38.72% 0.0918 -0.1516)
OKLCH	oklch(38.72% 0.177 301.2)
XYZ	xyz(9.4320, 4.8544, 27.2226)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#571B91 #55911B

analogous

#1C1B91 #571B91 #911B90

triadic

#571B91 #91571B #1B9157

tetradic

#571B91 #911C1B #55911B #1B9091

square

#571B91 #911C1B #55911B #1B9091

split-complementary

#571B91 #90911B #1B911C

monochromatic

#19082A #38115D #571B91 #7625C5 #9449DD

Accessibility & contrast

On white

10.66

#571B91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#571B91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #571B91

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##571B91	#FFFFFF	#000000	##FFFFFF
##571B91	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E94

Deuteranopia (green-blind)

#003E8F

Tritanopia (blue-blind)

#4A3C56

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #571b91;
/* rgb */ color: rgb(87, 27, 145);
/* oklch */ color: oklch(38.7% 0.177 301.2);

Tailwind

colors: {
  custom: {
    50: '#8d60b2',
    500: '#571b91',
    950: '#000000',
  },
}

SCSS

$custom: #571b91;
$custom-light: #8d60b2;
$custom-dark: #000000;

JSON

{
  "hex": "#571b91",
  "rgb": {
    "r": 87,
    "g": 27,
    "b": 145
  },
  "hsl": {
    "h": 270.508,
    "s": 68.605,
    "l": 33.725
  },
  "oklch": {
    "l": 0.38724,
    "c": 0.17717,
    "h": 301.2
  },
  "luminance": 0.04854
}

Semantic roles & 50–950 ramp

primary

#571B91

secondary

#83BF49

accent

#EB3C92

background

#F9F5FB

surface

#F1EAF6

border

#CBC6D0

text

#0D0511

muted

#7E7980

Preview Lab

Preview with #571B91

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

Preview Lab → · Contrast checker → · Palette generator →