#B551BB#B551BB

#B551BB is a mid, vivid purple. Relative luminance 0.193; OKLCH L 60.1% C 0.184 H 325.3°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX#B551BB
RGBrgb(181, 81, 187)
HSLhsl(297, 44%, 53%)
HSVhsv(297, 57%, 73%)
CMYKcmyk(3.2%, 56.7%, 0%, 26.7%)
CIE-LABlab(51.03, 55.11, -37.79)
CIE-LCHlch(51.03, 66.82, 325.56°)
OKLaboklab(60.11% 0.151 -0.1044)
OKLCHoklch(60.11% 0.184 325.3)
XYZxyz(30.9674, 19.2982, 49.0979)
Luminance0.1930 (WCAG relative)
Temperatureneutral
Familypurple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B551BB #57BB51
analogous
#8051BB #B551BB #BB518C
triadic
#B551BB #BBB551 #51BBB5
tetradic
#B551BB #BB8051 #57BB51 #518CBB
square
#B551BB #BB8051 #57BB51 #518CBB
split-complementary
#B551BB #8CBB51 #51BB80
monochromatic
#652969 #903A95 #B551BB #C87DCC #DAA9DD

Accessibility & contrast

On white

4.32
#B551BB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.86
#B551BB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #B551BB
4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B551BB#FFFFFF#000000##000000
##B551BB1.004.324.864.86
#FFFFFF4.321.0021.0021.00
#0000004.8621.001.001.00
##0000004.8621.001.001.00

Color blindness preview

Protanopia (red-blind)
#4272BE
Deuteranopia (green-blind)
#647EB8
Tritanopia (blue-blind)
#B95F7E
Achromatopsia (no color)
#7A7A7A

Design tokens & code

CSS
--color: #b551bb;
/* rgb */ color: rgb(181, 81, 187);
/* oklch */ color: oklch(60.1% 0.184 325.3);
Tailwind
colors: {
  custom: {
    50: '#ce87d0',
    500: '#b551bb',
    950: '#000000',
  },
}
SCSS
$custom: #b551bb;
$custom-light: #ce87d0;
$custom-dark: #000000;
JSON
{
  "hex": "#b551bb",
  "rgb": {
    "r": 181,
    "g": 81,
    "b": 187
  },
  "hsl": {
    "h": 296.604,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.6011,
    "c": 0.18354,
    "h": 325.3
  },
  "luminance": 0.19296
}

Semantic roles & 50–950 ramp

primary
#B551BB
secondary
#9FCB9D
accent
#D4545B
background
#FCF8FC
surface
#F9F0F9
border
#D2CBD2
text
#140C14
muted
#827D82

Preview Lab

Preview with #B551BB

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

Preview Lab → · Contrast checker → · Palette generator →

#B551BB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva