#511687#511687

#511687 is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.6% C 0.171 H 301.7°. Best body text is #FFFFFF at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#511687
RGB	rgb(81, 22, 135)
HSL	hsl(271, 72%, 31%)
HSV	hsv(271, 84%, 53%)
CMYK	cmyk(40%, 83.7%, 0%, 47.1%)
CIE-LAB	lab(23.91, 47.58, -50.78)
CIE-LCH	lch(23.91, 69.59, 313.13°)
OKLab	oklab(36.59% 0.0895 -0.1451)
OKLCH	oklch(36.59% 0.171 301.7)
XYZ	xyz(8.0524, 4.0724, 23.2788)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 2.73

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511687 #4C8716

analogous

#181687 #511687 #871684

triadic

#511687 #875116 #168751

tetradic

#511687 #871816 #4C8716 #168487

square

#511687 #871816 #4C8716 #168487

split-complementary

#511687 #848716 #168718

monochromatic

#12051E #310D52 #511687 #711FBC #8F39DF

Accessibility & contrast

On white

11.57

#511687 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#511687 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511687

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511687	#FFFFFF	#000000	##FFFFFF
##511687	1.00	11.57	1.81	11.57
#FFFFFF	11.57	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388A

Deuteranopia (green-blind)

#003885

Tritanopia (blue-blind)

#453650

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #511687;
/* rgb */ color: rgb(81, 22, 135);
/* oklch */ color: oklch(36.6% 0.171 301.7);

Tailwind

colors: {
  custom: {
    50: '#885cab',
    500: '#511687',
    950: '#000000',
  },
}

SCSS

$custom: #511687;
$custom-light: #885cab;
$custom-dark: #000000;

JSON

{
  "hex": "#511687",
  "rgb": {
    "r": 81,
    "g": 22,
    "b": 135
  },
  "hsl": {
    "h": 271.327,
    "s": 71.975,
    "l": 30.784
  },
  "oklch": {
    "l": 0.36591,
    "c": 0.17052,
    "h": 301.7
  },
  "luminance": 0.04072
}

Semantic roles & 50–950 ramp

primary

#511687

secondary

#7ABB3E

accent

#EF3990

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C0410

muted

#7D797F

Preview Lab

Preview with #511687

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

Preview Lab → · Contrast checker → · Palette generator →