#51187D#51187D

#51187D is a dark, vivid violet. Relative luminance 0.039; OKLCH L 35.9% C 0.158 H 305.0°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#51187D
RGB	rgb(81, 24, 125)
HSL	hsl(274, 68%, 29%)
HSV	hsv(274, 81%, 49%)
CMYK	cmyk(35.2%, 80.8%, 0%, 51%)
CIE-LAB	lab(23.28, 44.38, -45.50)
CIE-LCH	lch(23.28, 63.56, 314.29°)
OKLab	oklab(35.88% 0.0909 -0.1296)
OKLCH	oklch(35.88% 0.158 305)
XYZ	xyz(7.4208, 3.8833, 19.7567)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.29

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51187D #447D18

analogous

#1E187D #51187D #7D1877

triadic

#51187D #7D5118 #187D51

tetradic

#51187D #7D1E18 #447D18 #18777D

square

#51187D #7D1E18 #447D18 #18777D

split-complementary

#51187D #777D18 #187D1E

monochromatic

#11051A #300E4A #51187D #7222B0 #9237D9

Accessibility & contrast

On white

11.82

#51187D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#51187D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51187D

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51187D	#FFFFFF	#000000	##FFFFFF
##51187D	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003680

Deuteranopia (green-blind)

#00387B

Tritanopia (blue-blind)

#49324A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #51187d;
/* rgb */ color: rgb(81, 24, 125);
/* oklch */ color: oklch(35.9% 0.158 305.0);

Tailwind

colors: {
  custom: {
    50: '#875ca3',
    500: '#51187d',
    950: '#000000',
  },
}

SCSS

$custom: #51187d;
$custom-light: #875ca3;
$custom-dark: #000000;

JSON

{
  "hex": "#51187d",
  "rgb": {
    "r": 81,
    "g": 24,
    "b": 125
  },
  "hsl": {
    "h": 273.861,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.35879,
    "c": 0.15832,
    "h": 305
  },
  "luminance": 0.03883
}

Semantic roles & 50–950 ramp

primary

#51187D

secondary

#71B23F

accent

#EB3D89

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C040F

muted

#7D797F

Preview Lab

Preview with #51187D

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

Preview Lab → · Contrast checker → · Palette generator →