#511C8A#511C8A

#511C8A is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.4% C 0.168 H 299.9°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#511C8A
RGB	rgb(81, 28, 138)
HSL	hsl(269, 66%, 33%)
HSV	hsv(269, 80%, 54%)
CMYK	cmyk(41.3%, 79.7%, 0%, 45.9%)
CIE-LAB	lab(25.00, 45.96, -50.88)
CIE-LCH	lch(25.00, 68.56, 312.09°)
OKLab	oklab(37.43% 0.0838 -0.1454)
OKLCH	oklch(37.43% 0.168 299.9)
XYZ	xyz(8.3949, 4.4147, 24.4497)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C8A #558A1C

analogous

#1C1E8A #511C8A #881C8A

triadic

#511C8A #8A511C #1C8A51

tetradic

#511C8A #8A1C1E #558A1C #1C8A88

square

#511C8A #8A1C1E #558A1C #1C8A88

split-complementary

#511C8A #8A881C #1E8A1C

monochromatic

#150724 #331257 #511C8A #6F26BD #8E47DA

Accessibility & contrast

On white

11.15

#511C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#511C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C8A

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C8A	#FFFFFF	#000000	##FFFFFF
##511C8A	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8D

Deuteranopia (green-blind)

#003A88

Tritanopia (blue-blind)

#443A53

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #511c8a;
/* rgb */ color: rgb(81, 28, 138);
/* oklch */ color: oklch(37.4% 0.168 299.9);

Tailwind

colors: {
  custom: {
    50: '#885fad',
    500: '#511c8a',
    950: '#000000',
  },
}

SCSS

$custom: #511c8a;
$custom-light: #885fad;
$custom-dark: #000000;

JSON

{
  "hex": "#511c8a",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 138
  },
  "hsl": {
    "h": 268.909,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.37432,
    "c": 0.16786,
    "h": 299.9
  },
  "luminance": 0.04415
}

Semantic roles & 50–950 ramp

primary

#511C8A

secondary

#83BB46

accent

#E93F97

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511C8A

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

Preview Lab → · Contrast checker → · Palette generator →