#551C80#551C80

#551C80 is a dark, vivid violet. Relative luminance 0.043; OKLCH L 37.1% C 0.158 H 305.8°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#551C80
RGB	rgb(85, 28, 128)
HSL	hsl(274, 64%, 31%)
HSV	hsv(274, 78%, 50%)
CMYK	cmyk(33.6%, 78.1%, 0%, 49.8%)
CIE-LAB	lab(24.70, 44.20, -45.06)
CIE-LCH	lch(24.70, 63.11, 314.45°)
OKLab	oklab(37.08% 0.0925 -0.1282)
OKLCH	oklch(37.08% 0.158 305.8)
XYZ	xyz(8.0570, 4.3204, 20.8274)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.08

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551C80 #47801C

analogous

#231C80 #551C80 #801C79

triadic

#551C80 #80551C #1C8055

tetradic

#551C80 #80231C #47801C #1C7980

square

#551C80 #80231C #47801C #1C7980

split-complementary

#551C80 #79801C #1C8023

monochromatic

#12061C #34114E #551C80 #7627B2 #9641D5

Accessibility & contrast

On white

11.27

#551C80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#551C80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551C80

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551C80	#FFFFFF	#000000	##FFFFFF
##551C80	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003983

Deuteranopia (green-blind)

#003B7E

Tritanopia (blue-blind)

#4D354D

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #551c80;
/* rgb */ color: rgb(85, 28, 128);
/* oklch */ color: oklch(37.1% 0.158 305.8);

Tailwind

colors: {
  custom: {
    50: '#895fa6',
    500: '#551c80',
    950: '#000000',
  },
}

SCSS

$custom: #551c80;
$custom-light: #895fa6;
$custom-dark: #000000;

JSON

{
  "hex": "#551c80",
  "rgb": {
    "r": 85,
    "g": 28,
    "b": 128
  },
  "hsl": {
    "h": 274.2,
    "s": 64.103,
    "l": 30.588
  },
  "oklch": {
    "l": 0.3708,
    "c": 0.15807,
    "h": 305.8
  },
  "luminance": 0.0432
}

Semantic roles & 50–950 ramp

primary

#551C80

secondary

#74B344

accent

#E74188

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #551C80

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

Preview Lab → · Contrast checker → · Palette generator →