#551F9B#551F9B

#551F9B is a dark, vivid violet. Relative luminance 0.053; OKLCH L 39.8% C 0.184 H 296.7°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#551F9B
RGB	rgb(85, 31, 155)
HSL	hsl(266, 67%, 36%)
HSV	hsv(266, 80%, 61%)
CMYK	cmyk(45.2%, 80%, 0%, 39.2%)
CIE-LAB	lab(27.51, 49.68, -57.24)
CIE-LCH	lch(27.51, 75.79, 310.95°)
OKLab	oklab(39.78% 0.0825 -0.164)
OKLCH	oklch(39.78% 0.184 296.7)
XYZ	xyz(10.1511, 5.2776, 31.4878)
Luminance	0.0528 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551F9B #659B1F

analogous

#1F279B #551F9B #931F9B

triadic

#551F9B #9B551F #1F9B55

tetradic

#551F9B #9B1F27 #659B1F #1F9B93

square

#551F9B #9B1F27 #659B1F #1F9B93

split-complementary

#551F9B #9B931F #279B1F

monochromatic

#1D0B35 #391568 #551F9B #7129CE #9257DD

Accessibility & contrast

On white

10.22

#551F9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#551F9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551F9B

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551F9B	#FFFFFF	#000000	##FFFFFF
##551F9B	1.00	10.22	2.06	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429E

Deuteranopia (green-blind)

#003F99

Tritanopia (blue-blind)

#42425D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #551f9b;
/* rgb */ color: rgb(85, 31, 155);
/* oklch */ color: oklch(39.8% 0.184 296.7);

Tailwind

colors: {
  custom: {
    50: '#8c62ba',
    500: '#551f9b',
    950: '#000000',
  },
}

SCSS

$custom: #551f9b;
$custom-light: #8c62ba;
$custom-dark: #000000;

JSON

{
  "hex": "#551f9b",
  "rgb": {
    "r": 85,
    "g": 31,
    "b": 155
  },
  "hsl": {
    "h": 266.129,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.39777,
    "c": 0.18356,
    "h": 296.7
  },
  "luminance": 0.05278
}

Semantic roles & 50–950 ramp

primary

#551F9B

secondary

#92C155

accent

#EA3E9F

background

#F9F6FB

surface

#F1EBF6

border

#CBC6D0

text

#0D0512

muted

#7E7A81

Preview Lab

Preview with #551F9B

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

Preview Lab → · Contrast checker → · Palette generator →