#581B8C#581B8C

#581B8C is a dark, vivid violet. Relative luminance 0.048; OKLCH L 38.4% C 0.172 H 303.4°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX#581B8C
RGBrgb(88, 27, 140)
HSLhsl(272, 68%, 33%)
HSVhsv(272, 81%, 55%)
CMYKcmyk(37.1%, 80.7%, 0%, 45.1%)
CIE-LABlab(26.02, 48.04, -50.42)
CIE-LCHlch(26.02, 69.64, 313.62°)
OKLaboklab(38.41% 0.0948 -0.1438)
OKLCHoklch(38.41% 0.172 303.4)
XYZxyz(9.1489, 4.7520, 25.2411)
Luminance0.0475 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#581B8C #4F8C1B
analogous
#1F1B8C #581B8C #8C1B88
triadic
#581B8C #8C581B #1B8C58
tetradic
#581B8C #8C1F1B #4F8C1B #1B888C
square
#581B8C #8C1F1B #4F8C1B #1B888C
split-complementary
#581B8C #888C1B #1B8C1F
monochromatic
#180725 #381159 #581B8C #7825BF #9746DB

Accessibility & contrast

On white

10.77
#581B8C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.95
#581B8C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B8C
10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##581B8C#FFFFFF#000000##FFFFFF
##581B8C1.0010.771.9510.77
#FFFFFF10.771.0021.001.00
#0000001.9521.001.0021.00
##FFFFFF10.771.0021.001.00

Color blindness preview

Protanopia (red-blind)
#003C8F
Deuteranopia (green-blind)
#003D8A
Tritanopia (blue-blind)
#4D3954
Achromatopsia (no color)
#3E3E3E

Design tokens & code

CSS
--color: #581b8c;
/* rgb */ color: rgb(88, 27, 140);
/* oklch */ color: oklch(38.4% 0.172 303.4);
Tailwind
colors: {
  custom: {
    50: '#8d5fae',
    500: '#581b8c',
    950: '#000000',
  },
}
SCSS
$custom: #581b8c;
$custom-light: #8d5fae;
$custom-dark: #000000;
JSON
{
  "hex": "#581b8c",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 140
  },
  "hsl": {
    "h": 272.389,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.3841,
    "c": 0.17224,
    "h": 303.4
  },
  "luminance": 0.04752
}

Semantic roles & 50–950 ramp

primary
#581B8C
secondary
#7DBD46
accent
#EB3D8D
background
#F9F5FA
surface
#F1EAF4
border
#CBC6CE
text
#0D0510
muted
#7E797F

Preview Lab

Preview with #581B8C

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

Preview Lab → · Contrast checker → · Palette generator →

#581B8C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva