#511B74#511B74

#511B74 is a dark, vivid violet. Relative luminance 0.038; OKLCH L 35.4% C 0.145 H 308.3°. Best body text is #FFFFFF at 11.94:1 contrast (WCAG AA passes).

Color values

HEX	#511B74
RGB	rgb(81, 27, 116)
HSL	hsl(276, 62%, 28%)
HSV	hsv(276, 77%, 45%)
CMYK	cmyk(30.2%, 76.7%, 0%, 54.5%)
CIE-LAB	lab(22.98, 40.94, -40.25)
CIE-LCH	lch(22.98, 57.41, 315.49°)
OKLab	oklab(35.43% 0.0901 -0.1142)
OKLCH	oklch(35.43% 0.145 308.3)
XYZ	xyz(6.9370, 3.7943, 16.8865)
Luminance	0.0379 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B74 #3E741B

analogous

#241B74 #511B74 #741B6B

triadic

#511B74 #74511B #1B7451

tetradic

#511B74 #74241B #3E741B #1B6B74

square

#511B74 #74241B #3E741B #1B6B74

split-complementary

#511B74 #6B741B #1B7424

monochromatic

#110619 #2E0F42 #511B74 #7427A6 #9539D1

Accessibility & contrast

On white

11.94

#511B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#511B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B74

11.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B74	#FFFFFF	#000000	##FFFFFF
##511B74	1.00	11.94	1.76	11.94
#FFFFFF	11.94	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003577

Deuteranopia (green-blind)

#003772

Tritanopia (blue-blind)

#4B3046

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #511b74;
/* rgb */ color: rgb(81, 27, 116);
/* oklch */ color: oklch(35.4% 0.145 308.3);

Tailwind

colors: {
  custom: {
    50: '#865d9d',
    500: '#511b74',
    950: '#000000',
  },
}

SCSS

$custom: #511b74;
$custom-light: #865d9d;
$custom-dark: #000000;

JSON

{
  "hex": "#511b74",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 116
  },
  "hsl": {
    "h": 276.404,
    "s": 62.238,
    "l": 28.039
  },
  "oklch": {
    "l": 0.35432,
    "c": 0.14547,
    "h": 308.3
  },
  "luminance": 0.03794
}

Semantic roles & 50–950 ramp

primary

#511B74

secondary

#6AA942

accent

#E54283

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0B040E

muted

#7C797E

Preview Lab

Preview with #511B74

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

Preview Lab → · Contrast checker → · Palette generator →