#573B9B#573B9B

#573B9B is a dark, vivid violet. Relative luminance 0.075; OKLCH L 43.7% C 0.149 H 292.6°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#573B9B
RGB	rgb(87, 59, 155)
HSL	hsl(258, 45%, 42%)
HSV	hsv(258, 62%, 61%)
CMYK	cmyk(43.9%, 61.9%, 0%, 39.2%)
CIE-LAB	lab(32.96, 35.60, -48.35)
CIE-LCH	lch(32.96, 60.04, 306.36°)
OKLab	oklab(43.72% 0.0573 -0.1379)
OKLCH	oklch(43.72% 0.149 292.6)
XYZ	xyz(11.4092, 7.5204, 31.8544)
Luminance	0.0752 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#573B9B #7F9B3B

analogous

#3B4F9B #573B9B #873B9B

triadic

#573B9B #9B573B #3B9B57

tetradic

#573B9B #9B3B4F #7F9B3B #3B9B87

square

#573B9B #9B3B4F #7F9B3B #3B9B87

split-complementary

#573B9B #9B873B #4F9B3B

monochromatic

#251942 #3E2A6F #573B9B #7455BE #9881CF

Accessibility & contrast

On white

8.39

#573B9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#573B9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #573B9B

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##573B9B	#FFFFFF	#000000	##FFFFFF
##573B9B	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9E

Deuteranopia (green-blind)

#004C99

Tritanopia (blue-blind)

#445165

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #573b9b;
/* rgb */ color: rgb(87, 59, 155);
/* oklch */ color: oklch(43.7% 0.149 292.6);

Tailwind

colors: {
  custom: {
    50: '#8c72b9',
    500: '#573b9b',
    950: '#000000',
  },
}

SCSS

$custom: #573b9b;
$custom-light: #8c72b9;
$custom-dark: #000000;

JSON

{
  "hex": "#573b9b",
  "rgb": {
    "r": 87,
    "g": 59,
    "b": 155
  },
  "hsl": {
    "h": 257.5,
    "s": 44.86,
    "l": 41.961
  },
  "oklch": {
    "l": 0.43722,
    "c": 0.14937,
    "h": 292.6
  },
  "luminance": 0.07521
}

Semantic roles & 50–950 ramp

primary

#573B9B

secondary

#A6B979

accent

#D553AF

background

#F8F7FB

surface

#F0EDF6

border

#CBC8D0

text

#0C0811

muted

#7D7B80

Preview Lab

Preview with #573B9B

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

Preview Lab → · Contrast checker → · Palette generator →