#511B4B#511B4B

#511B4B is a dark, moderate purple. Relative luminance 0.030; OKLCH L 32.6% C 0.103 H 332.3°. Best body text is #FFFFFF at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#511B4B
RGB	rgb(81, 27, 75)
HSL	hsl(307, 50%, 21%)
HSV	hsv(307, 67%, 32%)
CMYK	cmyk(0%, 66.7%, 7.4%, 68.2%)
CIE-LAB	lab(20.21, 31.96, -17.60)
CIE-LCH	lch(20.21, 36.48, 331.16°)
OKLab	oklab(32.56% 0.0916 -0.0481)
OKLCH	oklch(32.56% 0.103 332.3)
XYZ	xyz(5.0553, 3.0416, 6.9761)
Luminance	0.0304 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B4B #1B5121

analogous

#3C1B51 #511B4B #511B30

triadic

#511B4B #4B511B #1B4B51

tetradic

#511B4B #513C1B #1B5121 #1B3051

square

#511B4B #513C1B #1B5121 #1B3051

split-complementary

#511B4B #30511B #1B513C

monochromatic

#170815 #230C20 #511B4B #7F2A75 #AD3AA0

Accessibility & contrast

On white

13.06

#511B4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#511B4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B4B

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B4B	#FFFFFF	#000000	##FFFFFF
##511B4B	1.00	13.06	1.61	13.06
#FFFFFF	13.06	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#192C4C

Deuteranopia (green-blind)

#2A344A

Tritanopia (blue-blind)

#552030

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #511b4b;
/* rgb */ color: rgb(81, 27, 75);
/* oklch */ color: oklch(32.6% 0.103 332.3);

Tailwind

colors: {
  custom: {
    50: '#845b7d',
    500: '#511b4b',
    950: '#000000',
  },
}

SCSS

$custom: #511b4b;
$custom-light: #845b7d;
$custom-dark: #000000;

JSON

{
  "hex": "#511b4b",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 75
  },
  "hsl": {
    "h": 306.667,
    "s": 50,
    "l": 21.176
  },
  "oklch": {
    "l": 0.32556,
    "c": 0.10347,
    "h": 332.3
  },
  "luminance": 0.03041
}

Semantic roles & 50–950 ramp

primary

#511B4B

secondary

#418749

accent

#DA5E4E

background

#F8F5F7

surface

#EFE9EE

border

#CAC5C9

text

#0B0409

muted

#7C797B

Preview Lab

Preview with #511B4B

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

Preview Lab → · Contrast checker → · Palette generator →