#551F7D#551F7D

#551F7D is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.2% C 0.151 H 306.5°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#551F7D
RGB	rgb(85, 31, 125)
HSL	hsl(274, 60%, 31%)
HSV	hsv(274, 75%, 49%)
CMYK	cmyk(32%, 75.2%, 0%, 51%)
CIE-LAB	lab(24.93, 42.14, -42.80)
CIE-LCH	lch(24.93, 60.06, 314.55°)
OKLab	oklab(37.16% 0.0901 -0.1216)
OKLCH	oklch(37.16% 0.151 306.5)
XYZ	xyz(7.9372, 4.3920, 19.8277)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.77

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551F7D #477D1F

analogous

#261F7D #551F7D #7D1F76

triadic

#551F7D #7D551F #1F7D55

tetradic

#551F7D #7D261F #477D1F #1F767D

square

#551F7D #7D261F #477D1F #1F767D

split-complementary

#551F7D #767D1F #1F7D26

monochromatic

#12071B #34134C #551F7D #762BAE #9645D1

Accessibility & contrast

On white

11.18

#551F7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#551F7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551F7D

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551F7D	#FFFFFF	#000000	##FFFFFF
##551F7D	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003980

Deuteranopia (green-blind)

#003B7B

Tritanopia (blue-blind)

#4E354C

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #551f7d;
/* rgb */ color: rgb(85, 31, 125);
/* oklch */ color: oklch(37.2% 0.151 306.5);

Tailwind

colors: {
  custom: {
    50: '#8960a3',
    500: '#551f7d',
    950: '#000000',
  },
}

SCSS

$custom: #551f7d;
$custom-light: #8960a3;
$custom-dark: #000000;

JSON

{
  "hex": "#551f7d",
  "rgb": {
    "r": 85,
    "g": 31,
    "b": 125
  },
  "hsl": {
    "h": 274.468,
    "s": 60.256,
    "l": 30.588
  },
  "oklch": {
    "l": 0.37162,
    "c": 0.15132,
    "h": 306.5
  },
  "luminance": 0.04392
}

Semantic roles & 50–950 ramp

primary

#551F7D

secondary

#74B048

accent

#E34488

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #551F7D

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

Preview Lab → · Contrast checker → · Palette generator →