#551D88#551D88

#551D88 is a dark, vivid violet. Relative luminance 0.046; OKLCH L 37.9% C 0.165 H 302.8°. Best body text is #FFFFFF at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#551D88
RGB	rgb(85, 29, 136)
HSL	hsl(271, 65%, 32%)
HSV	hsv(271, 79%, 53%)
CMYK	cmyk(37.5%, 78.7%, 0%, 46.7%)
CIE-LAB	lab(25.53, 45.73, -48.74)
CIE-LCH	lch(25.53, 66.83, 313.17°)
OKLab	oklab(37.87% 0.0896 -0.139)
OKLCH	oklch(37.87% 0.165 302.8)
XYZ	xyz(8.6286, 4.5876, 23.7187)
Luminance	0.0459 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.05

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551D88 #50881D

analogous

#201D88 #551D88 #881D85

triadic

#551D88 #88551D #1D8855

tetradic

#551D88 #88201D #50881D #1D8588

square

#551D88 #88201D #50881D #1D8588

split-complementary

#551D88 #85881D #1D8820

monochromatic

#160723 #351256 #551D88 #7528BA #9348D8

Accessibility & contrast

On white

10.95

#551D88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#551D88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551D88

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551D88	#FFFFFF	#000000	##FFFFFF
##551D88	1.00	10.95	1.92	10.95
#FFFFFF	10.95	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8B

Deuteranopia (green-blind)

#003C86

Tritanopia (blue-blind)

#4A3952

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #551d88;
/* rgb */ color: rgb(85, 29, 136);
/* oklch */ color: oklch(37.9% 0.165 302.8);

Tailwind

colors: {
  custom: {
    50: '#8a60ac',
    500: '#551d88',
    950: '#000000',
  },
}

SCSS

$custom: #551d88;
$custom-light: #8a60ac;
$custom-dark: #000000;

JSON

{
  "hex": "#551d88",
  "rgb": {
    "r": 85,
    "g": 29,
    "b": 136
  },
  "hsl": {
    "h": 271.402,
    "s": 64.848,
    "l": 32.353
  },
  "oklch": {
    "l": 0.37868,
    "c": 0.1654,
    "h": 302.8
  },
  "luminance": 0.04588
}

Semantic roles & 50–950 ramp

primary

#551D88

secondary

#7EBA47

accent

#E84090

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #551D88

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

Preview Lab → · Contrast checker → · Palette generator →