#573B9F#573B9F

#573B9F is a dark, vivid violet. Relative luminance 0.077; OKLCH L 44.0% C 0.155 H 291.7°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#573B9F
RGB	rgb(87, 59, 159)
HSL	hsl(257, 46%, 43%)
HSV	hsv(257, 63%, 62%)
CMYK	cmyk(45.3%, 62.9%, 0%, 37.6%)
CIE-LAB	lab(33.26, 36.76, -50.30)
CIE-LCH	lch(33.26, 62.30, 306.17°)
OKLab	oklab(44.03% 0.0571 -0.1436)
OKLCH	oklch(44.03% 0.155 291.7)
XYZ	xyz(11.7507, 7.6570, 33.6530)
Luminance	0.0766 (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

#573B9F #839F3B

analogous

#3B519F #573B9F #893B9F

triadic

#573B9F #9F573B #3B9F57

tetradic

#573B9F #9F3B51 #839F3B #3B9F89

square

#573B9F #9F3B51 #839F3B #3B9F89

split-complementary

#573B9F #9F893B #519F3B

monochromatic

#261A46 #3F2A72 #573B9F #7457C1 #9983D1

Accessibility & contrast

On white

8.30

#573B9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#573B9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #573B9F

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##573B9F	#FFFFFF	#000000	##FFFFFF
##573B9F	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A2

Deuteranopia (green-blind)

#004C9D

Tritanopia (blue-blind)

#425267

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #573b9f;
/* rgb */ color: rgb(87, 59, 159);
/* oklch */ color: oklch(44.0% 0.155 291.7);

Tailwind

colors: {
  custom: {
    50: '#8c72bc',
    500: '#573b9f',
    950: '#000000',
  },
}

SCSS

$custom: #573b9f;
$custom-light: #8c72bc;
$custom-dark: #000000;

JSON

{
  "hex": "#573b9f",
  "rgb": {
    "r": 87,
    "g": 59,
    "b": 159
  },
  "hsl": {
    "h": 256.8,
    "s": 45.872,
    "l": 42.745
  },
  "oklch": {
    "l": 0.4403,
    "c": 0.15458,
    "h": 291.7
  },
  "luminance": 0.07657
}

Semantic roles & 50–950 ramp

primary

#573B9F

secondary

#A9BB7B

accent

#D652B1

background

#F8F7FB

surface

#F0EDF6

border

#CBC8D0

text

#0D0812

muted

#7D7B81

Preview Lab

Preview with #573B9F

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

Preview Lab → · Contrast checker → · Palette generator →