#551B50#551B50

#551B50 is a dark, moderate purple. Relative luminance 0.033; OKLCH L 33.5% C 0.111 H 331.3°. Best body text is #FFFFFF at 12.66:1 contrast (WCAG AA passes).

Color values

HEX	#551B50
RGB	rgb(85, 27, 80)
HSL	hsl(305, 52%, 22%)
HSV	hsv(305, 68%, 33%)
CMYK	cmyk(0%, 68.2%, 5.9%, 66.7%)
CIE-LAB	lab(21.19, 34.11, -19.40)
CIE-LCH	lch(21.19, 39.24, 330.36°)
OKLab	oklab(33.5% 0.0972 -0.0532)
OKLCH	oklch(33.5% 0.111 331.3)
XYZ	xyz(5.5862, 3.2948, 7.9296)
Luminance	0.0329 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B50 #1B5520

analogous

#3D1B55 #551B50 #551B33

triadic

#551B50 #50551B #1B5055

tetradic

#551B50 #553D1B #1B5520 #1B3355

square

#551B50 #553D1B #1B5520 #1B3355

split-complementary

#551B50 #33551B #1B553D

monochromatic

#170716 #270C24 #551B50 #832A7C #B239A7

Accessibility & contrast

On white

12.66

#551B50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#551B50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B50

12.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B50	#FFFFFF	#000000	##FFFFFF
##551B50	1.00	12.66	1.66	12.66
#FFFFFF	12.66	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#182E52

Deuteranopia (green-blind)

#2B364E

Tritanopia (blue-blind)

#592132

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #551b50;
/* rgb */ color: rgb(85, 27, 80);
/* oklch */ color: oklch(33.5% 0.111 331.3);

Tailwind

colors: {
  custom: {
    50: '#875c81',
    500: '#551b50',
    950: '#000000',
  },
}

SCSS

$custom: #551b50;
$custom-light: #875c81;
$custom-dark: #000000;

JSON

{
  "hex": "#551b50",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 80
  },
  "hsl": {
    "h": 305.172,
    "s": 51.786,
    "l": 21.961
  },
  "oklch": {
    "l": 0.33498,
    "c": 0.11086,
    "h": 331.3
  },
  "luminance": 0.03294
}

Semantic roles & 50–950 ramp

primary

#551B50

secondary

#418B47

accent

#DB594D

background

#F8F5F7

surface

#F0E9EE

border

#CBC5C9

text

#0B040A

muted

#7C797C

Preview Lab

Preview with #551B50

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

Preview Lab → · Contrast checker → · Palette generator →