#511B7A#511B7A

#511B7A is a dark, vivid violet. Relative luminance 0.039; OKLCH L 35.9% C 0.152 H 305.8°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#511B7A
RGB	rgb(81, 27, 122)
HSL	hsl(274, 64%, 29%)
HSV	hsv(274, 78%, 48%)
CMYK	cmyk(33.6%, 77.9%, 0%, 52.2%)
CIE-LAB	lab(23.47, 42.39, -43.29)
CIE-LCH	lch(23.47, 60.59, 314.40°)
OKLab	oklab(35.93% 0.0889 -0.1231)
OKLCH	oklch(35.93% 0.152 305.8)
XYZ	xyz(7.2973, 3.9384, 18.7843)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B7A #447A1B

analogous

#221B7A #511B7A #7A1B74

triadic

#511B7A #7A511B #1B7A51

tetradic

#511B7A #7A221B #447A1B #1B747A

square

#511B7A #7A221B #447A1B #1B747A

split-complementary

#511B7A #747A1B #1B7A22

monochromatic

#110619 #301048 #511B7A #7226AC #923CD4

Accessibility & contrast

On white

11.75

#511B7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#511B7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B7A

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B7A	#FFFFFF	#000000	##FFFFFF
##511B7A	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367D

Deuteranopia (green-blind)

#003878

Tritanopia (blue-blind)

#4A3249

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #511b7a;
/* rgb */ color: rgb(81, 27, 122);
/* oklch */ color: oklch(35.9% 0.152 305.8);

Tailwind

colors: {
  custom: {
    50: '#865ea1',
    500: '#511b7a',
    950: '#000000',
  },
}

SCSS

$custom: #511b7a;
$custom-light: #865ea1;
$custom-dark: #000000;

JSON

{
  "hex": "#511b7a",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 122
  },
  "hsl": {
    "h": 274.105,
    "s": 63.758,
    "l": 29.216
  },
  "oklch": {
    "l": 0.35929,
    "c": 0.15186,
    "h": 305.8
  },
  "luminance": 0.03938
}

Semantic roles & 50–950 ramp

primary

#511B7A

secondary

#71AE43

accent

#E74189

background

#F8F5FA

surface

#F0E9F3

border

#CBC5CD

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #511B7A

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

Preview Lab → · Contrast checker → · Palette generator →