#551C8E#551C8E

#551C8E is a dark, vivid violet. Relative luminance 0.047; OKLCH L 38.3% C 0.173 H 300.9°. Best body text is #FFFFFF at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#551C8E
RGB	rgb(85, 28, 142)
HSL	hsl(270, 67%, 33%)
HSV	hsv(270, 80%, 56%)
CMYK	cmyk(40.1%, 80.3%, 0%, 44.3%)
CIE-LAB	lab(25.91, 47.63, -51.86)
CIE-LCH	lch(25.91, 70.41, 312.56°)
OKLab	oklab(38.3% 0.0888 -0.1482)
OKLCH	oklch(38.3% 0.173 300.9)
XYZ	xyz(9.0428, 4.7147, 26.0196)
Luminance	0.0471 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551C8E #558E1C

analogous

#1C1C8E #551C8E #8E1C8E

triadic

#551C8E #8E551C #1C8E55

tetradic

#551C8E #8E1C1C #558E1C #1C8E8E

square

#551C8E #8E1C1C #558E1C #1C8E8E

split-complementary

#551C8E #8E8E1C #1C8E1C

monochromatic

#180828 #36125B #551C8E #7426C1 #9249DB

Accessibility & contrast

On white

10.81

#551C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#551C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551C8E

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551C8E	#FFFFFF	#000000	##FFFFFF
##551C8E	1.00	10.81	1.94	10.81
#FFFFFF	10.81	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D91

Deuteranopia (green-blind)

#003D8C

Tritanopia (blue-blind)

#483B55

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #551c8e;
/* rgb */ color: rgb(85, 28, 142);
/* oklch */ color: oklch(38.3% 0.173 300.9);

Tailwind

colors: {
  custom: {
    50: '#8b60b0',
    500: '#551c8e',
    950: '#000000',
  },
}

SCSS

$custom: #551c8e;
$custom-light: #8b60b0;
$custom-dark: #000000;

JSON

{
  "hex": "#551c8e",
  "rgb": {
    "r": 85,
    "g": 28,
    "b": 142
  },
  "hsl": {
    "h": 270,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.38296,
    "c": 0.17275,
    "h": 300.9
  },
  "luminance": 0.04715
}

Semantic roles & 50–950 ramp

primary

#551C8E

secondary

#83BD49

accent

#EA3E94

background

#F8F5FA

surface

#F0EAF5

border

#CBC6CF

text

#0D0511

muted

#7D7980

Preview Lab

Preview with #551C8E

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

Preview Lab → · Contrast checker → · Palette generator →