#551C8B#551C8B

#551C8B is a dark, vivid violet. Relative luminance 0.046; OKLCH L 38.0% C 0.170 H 301.9°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#551C8B
RGB	rgb(85, 28, 139)
HSL	hsl(271, 66%, 33%)
HSV	hsv(271, 80%, 55%)
CMYK	cmyk(38.8%, 79.9%, 0%, 45.5%)
CIE-LAB	lab(25.64, 46.89, -50.43)
CIE-LCH	lch(25.64, 68.86, 312.92°)
OKLab	oklab(38.03% 0.0896 -0.144)
OKLCH	oklch(38.03% 0.17 301.9)
XYZ	xyz(8.8206, 4.6258, 24.8493)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551C8B #528B1C

analogous

#1E1C8B #551C8B #8B1C89

triadic

#551C8B #8B551C #1C8B55

tetradic

#551C8B #8B1E1C #528B1C #1C898B

square

#551C8B #8B1E1C #528B1C #1C898B

split-complementary

#551C8B #898B1C #1C8B1E

monochromatic

#170725 #361258 #551C8B #7426BE #9347DA

Accessibility & contrast

On white

10.91

#551C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#551C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551C8B

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551C8B	#FFFFFF	#000000	##FFFFFF
##551C8B	1.00	10.91	1.93	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8E

Deuteranopia (green-blind)

#003C89

Tritanopia (blue-blind)

#493A53

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #551c8b;
/* rgb */ color: rgb(85, 28, 139);
/* oklch */ color: oklch(38.0% 0.170 301.9);

Tailwind

colors: {
  custom: {
    50: '#8b5fae',
    500: '#551c8b',
    950: '#000000',
  },
}

SCSS

$custom: #551c8b;
$custom-light: #8b5fae;
$custom-dark: #000000;

JSON

{
  "hex": "#551c8b",
  "rgb": {
    "r": 85,
    "g": 28,
    "b": 139
  },
  "hsl": {
    "h": 270.811,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.38029,
    "c": 0.16961,
    "h": 301.9
  },
  "luminance": 0.04626
}

Semantic roles & 50–950 ramp

primary

#551C8B

secondary

#80BC47

accent

#E93E92

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #551C8B

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

Preview Lab → · Contrast checker → · Palette generator →