#51187C#51187C

#51187C is a dark, vivid violet. Relative luminance 0.039; OKLCH L 35.8% C 0.157 H 305.4°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#51187C
RGB	rgb(81, 24, 124)
HSL	hsl(274, 68%, 29%)
HSV	hsv(274, 81%, 49%)
CMYK	cmyk(34.7%, 80.6%, 0%, 51.4%)
CIE-LAB	lab(23.20, 44.14, -45.00)
CIE-LCH	lch(23.20, 63.04, 314.45°)
OKLab	oklab(35.79% 0.0912 -0.1282)
OKLCH	oklch(35.79% 0.157 305.4)
XYZ	xyz(7.3572, 3.8579, 19.4219)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.37

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51187C #437C18

analogous

#1F187C #51187C #7C1875

triadic

#51187C #7C5118 #187C51

tetradic

#51187C #7C1F18 #437C18 #18757C

square

#51187C #7C1F18 #437C18 #18757C

split-complementary

#51187C #757C18 #187C1F

monochromatic

#11051A #300E49 #51187C #7222AF #9336D8

Accessibility & contrast

On white

11.85

#51187C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#51187C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51187C

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51187C	#FFFFFF	#000000	##FFFFFF
##51187C	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367F

Deuteranopia (green-blind)

#00377A

Tritanopia (blue-blind)

#49324A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #51187c;
/* rgb */ color: rgb(81, 24, 124);
/* oklch */ color: oklch(35.8% 0.157 305.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#51187c",
  "rgb": {
    "r": 81,
    "g": 24,
    "b": 124
  },
  "hsl": {
    "h": 274.2,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.35792,
    "c": 0.15728,
    "h": 305.4
  },
  "luminance": 0.03858
}

Semantic roles & 50–950 ramp

primary

#51187C

secondary

#70B13F

accent

#EA3D88

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C040F

muted

#7D797F

Preview Lab

Preview with #51187C

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

Preview Lab → · Contrast checker → · Palette generator →