#551B88#551B88

#551B88 is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.7% C 0.168 H 303.0°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX#551B88
RGBrgb(85, 27, 136)
HSLhsl(272, 67%, 32%)
HSVhsv(272, 80%, 53%)
CMYKcmyk(37.5%, 80.1%, 0%, 46.7%)
CIE-LABlab(25.24, 46.56, -49.21)
CIE-LCHlch(25.24, 67.75, 313.41°)
OKLaboklab(37.67% 0.0913 -0.1404)
OKLCHoklch(37.67% 0.168 303)
XYZxyz(8.5811, 4.4927, 23.7029)
Luminance0.0449 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#551B88 #4E881B
analogous
#1F1B88 #551B88 #881B85
triadic
#551B88 #88551B #1B8855
tetradic
#551B88 #881F1B #4E881B #1B8588
square
#551B88 #881F1B #4E881B #1B8588
split-complementary
#551B88 #85881B #1B881F
monochromatic
#150722 #351155 #551B88 #7525BB #9444DA

Accessibility & contrast

On white

11.06
#551B88 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.90
#551B88 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B88
11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##551B88#FFFFFF#000000##FFFFFF
##551B881.0011.061.9011.06
#FFFFFF11.061.0021.001.00
#0000001.9021.001.0021.00
##FFFFFF11.061.0021.001.00

Color blindness preview

Protanopia (red-blind)
#003B8B
Deuteranopia (green-blind)
#003C86
Tritanopia (blue-blind)
#4A3851
Achromatopsia (no color)
#3C3C3C

Design tokens & code

CSS
--color: #551b88;
/* rgb */ color: rgb(85, 27, 136);
/* oklch */ color: oklch(37.7% 0.168 303.0);
Tailwind
colors: {
  custom: {
    50: '#8a5fac',
    500: '#551b88',
    950: '#000000',
  },
}
SCSS
$custom: #551b88;
$custom-light: #8a5fac;
$custom-dark: #000000;
JSON
{
  "hex": "#551b88",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 136
  },
  "hsl": {
    "h": 271.927,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37666,
    "c": 0.1675,
    "h": 303
  },
  "luminance": 0.04493
}

Semantic roles & 50–950 ramp

primary
#551B88
secondary
#7CBB44
accent
#EA3E8E
background
#F8F5FA
surface
#F0EAF4
border
#CBC6CE
text
#0C0510
muted
#7D797F

Preview Lab

Preview with #551B88

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

Preview Lab → · Contrast checker → · Palette generator →

#551B88 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva