#551F8B#551F8B

#551F8B is a dark, vivid violet. Relative luminance 0.048; OKLCH L 38.3% C 0.166 H 301.5°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#551F8B
RGB	rgb(85, 31, 139)
HSL	hsl(270, 64%, 33%)
HSV	hsv(270, 78%, 55%)
CMYK	cmyk(38.8%, 77.7%, 0%, 45.5%)
CIE-LAB	lab(26.08, 45.61, -49.70)
CIE-LCH	lch(26.08, 67.46, 312.54°)
OKLab	oklab(38.34% 0.087 -0.1419)
OKLCH	oklch(38.34% 0.166 301.5)
XYZ	xyz(8.8954, 4.7753, 24.8742)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551F8B #558B1F

analogous

#1F1F8B #551F8B #8B1F8B

triadic

#551F8B #8B551F #1F8B55

tetradic

#551F8B #8B1F1F #558B1F #1F8B8B

square

#551F8B #8B1F1F #558B1F #1F8B8B

split-complementary

#551F8B #8B8B1F #1F8B1F

monochromatic

#180927 #361459 #551F8B #742ABD #924DD7

Accessibility & contrast

On white

10.74

#551F8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#551F8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551F8B

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551F8B	#FFFFFF	#000000	##FFFFFF
##551F8B	1.00	10.74	1.96	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8E

Deuteranopia (green-blind)

#003D89

Tritanopia (blue-blind)

#493B54

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #551f8b;
/* rgb */ color: rgb(85, 31, 139);
/* oklch */ color: oklch(38.3% 0.166 301.5);

Tailwind

colors: {
  custom: {
    50: '#8a61ae',
    500: '#551f8b',
    950: '#000000',
  },
}

SCSS

$custom: #551f8b;
$custom-light: #8a61ae;
$custom-dark: #000000;

JSON

{
  "hex": "#551f8b",
  "rgb": {
    "r": 85,
    "g": 31,
    "b": 139
  },
  "hsl": {
    "h": 270,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.3834,
    "c": 0.16642,
    "h": 301.5
  },
  "luminance": 0.04775
}

Semantic roles & 50–950 ramp

primary

#551F8B

secondary

#83BA4C

accent

#E74194

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #551F8B

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

Preview Lab → · Contrast checker → · Palette generator →