#573B8B#573B8B

#573B8B is a dark, vivid violet. Relative luminance 0.070; OKLCH L 42.5% C 0.128 H 296.7°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#573B8B
RGB	rgb(87, 59, 139)
HSL	hsl(261, 40%, 39%)
HSV	hsv(261, 58%, 55%)
CMYK	cmyk(37.4%, 57.6%, 0%, 45.5%)
CIE-LAB	lab(31.85, 31.00, -40.36)
CIE-LCH	lch(31.85, 50.90, 307.53°)
OKLab	oklab(42.55% 0.0577 -0.1144)
OKLCH	oklch(42.55% 0.128 296.7)
XYZ	xyz(10.1535, 7.0181, 25.2408)
Luminance	0.0702 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#573B8B #6F8B3B

analogous

#3B478B #573B8B #7F3B8B

triadic

#573B8B #8B573B #3B8B57

tetradic

#573B8B #8B3B47 #6F8B3B #3B8B7F

square

#573B8B #8B3B47 #6F8B3B #3B8B7F

split-complementary

#573B8B #8B7F3B #478B3B

monochromatic

#211735 #3C2960 #573B8B #724FB4 #957AC7

Accessibility & contrast

On white

8.74

#573B8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#573B8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #573B8B

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##573B8B	#FFFFFF	#000000	##FFFFFF
##573B8B	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154B8E

Deuteranopia (green-blind)

#1F4A89

Tritanopia (blue-blind)

#4B4C5D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #573b8b;
/* rgb */ color: rgb(87, 59, 139);
/* oklch */ color: oklch(42.5% 0.128 296.7);

Tailwind

colors: {
  custom: {
    50: '#8a72ad',
    500: '#573b8b',
    950: '#000000',
  },
}

SCSS

$custom: #573b8b;
$custom-light: #8a72ad;
$custom-dark: #000000;

JSON

{
  "hex": "#573b8b",
  "rgb": {
    "r": 87,
    "g": 59,
    "b": 139
  },
  "hsl": {
    "h": 261,
    "s": 40.404,
    "l": 38.824
  },
  "oklch": {
    "l": 0.42548,
    "c": 0.12815,
    "h": 296.7
  },
  "luminance": 0.07018
}

Semantic roles & 50–950 ramp

primary

#573B8B

secondary

#9AB072

accent

#D058A6

background

#F8F6FA

surface

#F0ECF4

border

#CBC7CE

text

#0C0810

muted

#7D7B7F

Preview Lab

Preview with #573B8B

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

Preview Lab → · Contrast checker → · Palette generator →