#551B85#551B85

#551B85 is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.4% C 0.164 H 304.1°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#551B85
RGB	rgb(85, 27, 133)
HSL	hsl(273, 66%, 31%)
HSV	hsv(273, 80%, 52%)
CMYK	cmyk(36.1%, 79.7%, 0%, 47.8%)
CIE-LAB	lab(24.98, 45.83, -47.76)
CIE-LCH	lch(24.98, 66.19, 313.82°)
OKLab	oklab(37.41% 0.0922 -0.1361)
OKLCH	oklch(37.41% 0.164 304.1)
XYZ	xyz(8.3709, 4.4086, 22.5957)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.75

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B85 #4B851B

analogous

#201B85 #551B85 #851B80

triadic

#551B85 #85551B #1B8555

tetradic

#551B85 #85201B #4B851B #1B8085

square

#551B85 #85201B #4B851B #1B8085

split-complementary

#551B85 #80851B #1B8520

monochromatic

#14061F #341152 #551B85 #7625B8 #9442D9

Accessibility & contrast

On white

11.16

#551B85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#551B85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B85

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B85	#FFFFFF	#000000	##FFFFFF
##551B85	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A88

Deuteranopia (green-blind)

#003B83

Tritanopia (blue-blind)

#4B3750

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #551b85;
/* rgb */ color: rgb(85, 27, 133);
/* oklch */ color: oklch(37.4% 0.164 304.1);

Tailwind

colors: {
  custom: {
    50: '#8a5fa9',
    500: '#551b85',
    950: '#000000',
  },
}

SCSS

$custom: #551b85;
$custom-light: #8a5fa9;
$custom-dark: #000000;

JSON

{
  "hex": "#551b85",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 133
  },
  "hsl": {
    "h": 272.83,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37405,
    "c": 0.16438,
    "h": 304.1
  },
  "luminance": 0.04409
}

Semantic roles & 50–950 ramp

primary

#551B85

secondary

#78B844

accent

#E93F8C

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #551B85

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

Preview Lab → · Contrast checker → · Palette generator →