#511E8B#511E8B

#511E8B is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.7% C 0.167 H 299.4°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).

Color values

HEX	#511E8B
RGB	rgb(81, 30, 139)
HSL	hsl(268, 64%, 33%)
HSV	hsv(268, 78%, 55%)
CMYK	cmyk(41.7%, 78.4%, 0%, 45.5%)
CIE-LAB	lab(25.39, 45.35, -50.86)
CIE-LCH	lch(25.39, 68.14, 311.72°)
OKLab	oklab(37.73% 0.0818 -0.1454)
OKLCH	oklch(37.73% 0.167 299.4)
XYZ	xyz(8.5166, 4.5418, 24.8491)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511E8B #588B1E

analogous

#1E228B #511E8B #871E8B

triadic

#511E8B #8B511E #1E8B51

tetradic

#511E8B #8B1E22 #588B1E #1E8B87

square

#511E8B #8B1E22 #588B1E #1E8B87

split-complementary

#511E8B #8B871E #228B1E

monochromatic

#160826 #341359 #511E8B #6E29BD #8D4BD8

Accessibility & contrast

On white

11.00

#511E8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#511E8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511E8B

11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511E8B	#FFFFFF	#000000	##FFFFFF
##511E8B	1.00	11.00	1.91	11.00
#FFFFFF	11.00	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8E

Deuteranopia (green-blind)

#003B89

Tritanopia (blue-blind)

#433B54

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #511e8b;
/* rgb */ color: rgb(81, 30, 139);
/* oklch */ color: oklch(37.7% 0.167 299.4);

Tailwind

colors: {
  custom: {
    50: '#8860ae',
    500: '#511e8b',
    950: '#000000',
  },
}

SCSS

$custom: #511e8b;
$custom-light: #8860ae;
$custom-dark: #000000;

JSON

{
  "hex": "#511e8b",
  "rgb": {
    "r": 81,
    "g": 30,
    "b": 139
  },
  "hsl": {
    "h": 268.073,
    "s": 64.497,
    "l": 33.137
  },
  "oklch": {
    "l": 0.37733,
    "c": 0.16684,
    "h": 299.4
  },
  "luminance": 0.04542
}

Semantic roles & 50–950 ramp

primary

#511E8B

secondary

#86BB4A

accent

#E74099

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511E8B

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

Preview Lab → · Contrast checker → · Palette generator →