#511D7B#511D7B

#511D7B is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.2% C 0.151 H 305.1°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#511D7B
RGB	rgb(81, 29, 123)
HSL	hsl(273, 62%, 30%)
HSV	hsv(273, 76%, 48%)
CMYK	cmyk(34.1%, 76.4%, 0%, 51.8%)
CIE-LAB	lab(23.86, 41.75, -43.28)
CIE-LCH	lch(23.86, 60.14, 313.96°)
OKLab	oklab(36.24% 0.0866 -0.1231)
OKLCH	oklch(36.24% 0.151 305.1)
XYZ	xyz(7.4071, 4.0582, 19.1281)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.25

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D7B #477B1D

analogous

#221D7B #511D7B #7B1D76

triadic

#511D7B #7B511D #1D7B51

tetradic

#511D7B #7B221D #477B1D #1D767B

square

#511D7B #7B221D #477B1D #1D767B

split-complementary

#511D7B #767B1D #1D7B22

monochromatic

#100619 #301149 #511D7B #7229AD #9140D2

Accessibility & contrast

On white

11.59

#511D7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#511D7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D7B

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D7B	#FFFFFF	#000000	##FFFFFF
##511D7B	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377E

Deuteranopia (green-blind)

#003979

Tritanopia (blue-blind)

#49344A

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #511d7b;
/* rgb */ color: rgb(81, 29, 123);
/* oklch */ color: oklch(36.2% 0.151 305.1);

Tailwind

colors: {
  custom: {
    50: '#865fa2',
    500: '#511d7b',
    950: '#000000',
  },
}

SCSS

$custom: #511d7b;
$custom-light: #865fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#511d7b",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 123
  },
  "hsl": {
    "h": 273.191,
    "s": 61.842,
    "l": 29.804
  },
  "oklch": {
    "l": 0.36235,
    "c": 0.15057,
    "h": 305.1
  },
  "luminance": 0.04058
}

Semantic roles & 50–950 ramp

primary

#511D7B

secondary

#74AF45

accent

#E5438B

background

#F8F5FA

surface

#F0E9F3

border

#CBC5CD

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #511D7B

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

Preview Lab → · Contrast checker → · Palette generator →