#573B9C#573B9C

#573B9C is a dark, vivid violet. Relative luminance 0.076; OKLCH L 43.8% C 0.151 H 292.3°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX#573B9C
RGBrgb(87, 59, 156)
HSLhsl(257, 45%, 42%)
HSVhsv(257, 62%, 61%)
CMYKcmyk(44.2%, 62.2%, 0%, 38.8%)
CIE-LABlab(33.04, 35.89, -48.84)
CIE-LCHlch(33.04, 60.61, 306.31°)
OKLaboklab(43.8% 0.0573 -0.1394)
OKLCHoklch(43.8% 0.151 292.3)
XYZxyz(11.4935, 7.5541, 32.2986)
Luminance0.0755 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#573B9C #809C3B
analogous
#3B4F9C #573B9C #883B9C
triadic
#573B9C #9C573B #3B9C57
tetradic
#573B9C #9C3B4F #809C3B #3B9C88
square
#573B9C #9C3B4F #809C3B #3B9C88
split-complementary
#573B9C #9C883B #4F9C3B
monochromatic
#251943 #3E2A70 #573B9C #7455BF #9882D0

Accessibility & contrast

On white

8.36
#573B9C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.51
#573B9C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #573B9C
8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##573B9C#FFFFFF#000000##FFFFFF
##573B9C1.008.362.518.36
#FFFFFF8.361.0021.001.00
#0000002.5121.001.0021.00
##FFFFFF8.361.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004F9F
Deuteranopia (green-blind)
#004C9A
Tritanopia (blue-blind)
#435166
Achromatopsia (no color)
#4E4E4E

Design tokens & code

CSS
--color: #573b9c;
/* rgb */ color: rgb(87, 59, 156);
/* oklch */ color: oklch(43.8% 0.151 292.3);
Tailwind
colors: {
  custom: {
    50: '#8c72ba',
    500: '#573b9c',
    950: '#000000',
  },
}
SCSS
$custom: #573b9c;
$custom-light: #8c72ba;
$custom-dark: #000000;
JSON
{
  "hex": "#573b9c",
  "rgb": {
    "r": 87,
    "g": 59,
    "b": 156
  },
  "hsl": {
    "h": 257.32,
    "s": 45.116,
    "l": 42.157
  },
  "oklch": {
    "l": 0.43798,
    "c": 0.15069,
    "h": 292.3
  },
  "luminance": 0.07554
}

Semantic roles & 50–950 ramp

primary
#573B9C
secondary
#A7B979
accent
#D553AF
background
#F8F7FB
surface
#F0EDF6
border
#CBC8D0
text
#0C0812
muted
#7D7B81

Preview Lab

Preview with #573B9C

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

Preview Lab → · Contrast checker → · Palette generator →

#573B9C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva