#51237B#51237B

#51237B is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.0% C 0.143 H 304.1°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#51237B
RGB	rgb(81, 35, 123)
HSL	hsl(271, 56%, 31%)
HSV	hsv(271, 72%, 48%)
CMYK	cmyk(34.1%, 71.5%, 0%, 51.8%)
CIE-LAB	lab(24.89, 38.84, -41.61)
CIE-LCH	lch(24.89, 56.92, 313.03°)
OKLab	oklab(36.97% 0.0801 -0.1183)
OKLCH	oklch(36.97% 0.143 304.1)
XYZ	xyz(7.5687, 4.3815, 19.1820)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 5.39

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51237B #4D7B23

analogous

#25237B #51237B #7B2379

triadic

#51237B #7B5123 #237B51

tetradic

#51237B #7B2523 #4D7B23 #23797B

square

#51237B #7B2523 #4D7B23 #23797B

split-complementary

#51237B #797B23 #237B25

monochromatic

#12081C #32154B #51237B #7031AB #8F4CCC

Accessibility & contrast

On white

11.19

#51237B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#51237B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51237B

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51237B	#FFFFFF	#000000	##FFFFFF
##51237B	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A7E

Deuteranopia (green-blind)

#003B79

Tritanopia (blue-blind)

#49374C

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #51237b;
/* rgb */ color: rgb(81, 35, 123);
/* oklch */ color: oklch(37.0% 0.143 304.1);

Tailwind

colors: {
  custom: {
    50: '#8662a2',
    500: '#51237b',
    950: '#000000',
  },
}

SCSS

$custom: #51237b;
$custom-light: #8662a2;
$custom-dark: #000000;

JSON

{
  "hex": "#51237b",
  "rgb": {
    "r": 81,
    "g": 35,
    "b": 123
  },
  "hsl": {
    "h": 271.364,
    "s": 55.696,
    "l": 30.98
  },
  "oklch": {
    "l": 0.36968,
    "c": 0.14286,
    "h": 304.1
  },
  "luminance": 0.04381
}

Semantic roles & 50–950 ramp

primary

#51237B

secondary

#7BAE4C

accent

#DF4990

background

#F8F5FA

surface

#F0EAF3

border

#CBC6CD

text

#0B050F

muted

#7C797F

Preview Lab

Preview with #51237B

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

Preview Lab → · Contrast checker → · Palette generator →