#511B51#511B51

#511B51 is a dark, moderate purple. Relative luminance 0.031; OKLCH L 32.9% C 0.109 H 327.7°. Best body text is #FFFFFF at 12.92:1 contrast (WCAG AA passes).

Color values

HEX	#511B51
RGB	rgb(81, 27, 81)
HSL	hsl(300, 50%, 21%)
HSV	hsv(300, 67%, 32%)
CMYK	cmyk(0%, 66.7%, 0%, 68.2%)
CIE-LAB	lab(20.55, 33.13, -21.13)
CIE-LCH	lch(20.55, 39.30, 327.47°)
OKLab	oklab(32.91% 0.0923 -0.0583)
OKLCH	oklch(32.91% 0.109 327.7)
XYZ	xyz(5.2704, 3.1276, 8.1091)
Luminance	0.0313 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B51 #1B511B

analogous

#361B51 #511B51 #511B36

triadic

#511B51 #51511B #1B5151

tetradic

#511B51 #51361B #1B511B #1B3651

square

#511B51 #51361B #1B511B #1B3651

split-complementary

#511B51 #36511B #1B5136

monochromatic

#170817 #230C23 #511B51 #7F2A7F #AD3AAD

Accessibility & contrast

On white

12.92

#511B51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#511B51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B51

12.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B51	#FFFFFF	#000000	##FFFFFF
##511B51	1.00	12.92	1.63	12.92
#FFFFFF	12.92	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#142D53

Deuteranopia (green-blind)

#283450

Tritanopia (blue-blind)

#542233

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #511b51;
/* rgb */ color: rgb(81, 27, 81);
/* oklch */ color: oklch(32.9% 0.109 327.7);

Tailwind

colors: {
  custom: {
    50: '#845c82',
    500: '#511b51',
    950: '#000000',
  },
}

SCSS

$custom: #511b51;
$custom-light: #845c82;
$custom-dark: #000000;

JSON

{
  "hex": "#511b51",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 81
  },
  "hsl": {
    "h": 300,
    "s": 50,
    "l": 21.176
  },
  "oklch": {
    "l": 0.32913,
    "c": 0.10916,
    "h": 327.7
  },
  "luminance": 0.03127
}

Semantic roles & 50–950 ramp

primary

#511B51

secondary

#418741

accent

#DA4E4E

background

#F8F5F7

surface

#EFE9EE

border

#CAC5C9

text

#0B040A

muted

#7C797C

Preview Lab

Preview with #511B51

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

Preview Lab → · Contrast checker → · Palette generator →