#511B73#511B73

#511B73 is a dark, vivid violet. Relative luminance 0.038; OKLCH L 35.4% C 0.144 H 308.7°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#511B73
RGB	rgb(81, 27, 115)
HSL	hsl(277, 62%, 28%)
HSV	hsv(277, 77%, 45%)
CMYK	cmyk(29.6%, 76.5%, 0%, 54.9%)
CIE-LAB	lab(22.90, 40.70, -39.74)
CIE-LCH	lch(22.90, 56.88, 315.69°)
OKLab	oklab(35.35% 0.0903 -0.1127)
OKLCH	oklch(35.35% 0.144 308.7)
XYZ	xyz(6.8792, 3.7711, 16.5818)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B73 #3D731B

analogous

#251B73 #511B73 #731B69

triadic

#511B73 #73511B #1B7351

tetradic

#511B73 #73251B #3D731B #1B6973

square

#511B73 #73251B #3D731B #1B6973

split-complementary

#511B73 #69731B #1B7325

monochromatic

#110619 #2E0F41 #511B73 #7427A5 #9538D0

Accessibility & contrast

On white

11.97

#511B73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#511B73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B73

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B73	#FFFFFF	#000000	##FFFFFF
##511B73	1.00	11.97	1.75	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003575

Deuteranopia (green-blind)

#023771

Tritanopia (blue-blind)

#4C3045

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #511b73;
/* rgb */ color: rgb(81, 27, 115);
/* oklch */ color: oklch(35.4% 0.144 308.7);

Tailwind

colors: {
  custom: {
    50: '#865d9c',
    500: '#511b73',
    950: '#000000',
  },
}

SCSS

$custom: #511b73;
$custom-light: #865d9c;
$custom-dark: #000000;

JSON

{
  "hex": "#511b73",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 115
  },
  "hsl": {
    "h": 276.818,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35351,
    "c": 0.14441,
    "h": 308.7
  },
  "luminance": 0.03771
}

Semantic roles & 50–950 ramp

primary

#511B73

secondary

#69A842

accent

#E54381

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0B040E

muted

#7C797E

Preview Lab

Preview with #511B73

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

Preview Lab → · Contrast checker → · Palette generator →