#51187B#51187B

#51187B is a dark, vivid violet. Relative luminance 0.038; OKLCH L 35.7% C 0.156 H 305.8°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#51187B
RGB	rgb(81, 24, 123)
HSL	hsl(275, 67%, 29%)
HSV	hsv(275, 80%, 48%)
CMYK	cmyk(34.1%, 80.5%, 0%, 51.8%)
CIE-LAB	lab(23.11, 43.90, -44.51)
CIE-LCH	lch(23.11, 62.52, 314.61°)
OKLab	oklab(35.71% 0.0914 -0.1267)
OKLCH	oklch(35.71% 0.156 305.8)
XYZ	xyz(7.2943, 3.8327, 19.0906)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.47

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51187B #427B18

analogous

#1F187B #51187B #7B1874

triadic

#51187B #7B5118 #187B51

tetradic

#51187B #7B1F18 #427B18 #18747B

square

#51187B #7B1F18 #427B18 #18747B

split-complementary

#51187B #747B18 #187B1F

monochromatic

#11051A #2F0E48 #51187B #7322AE #9336D8

Accessibility & contrast

On white

11.89

#51187B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#51187B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51187B

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51187B	#FFFFFF	#000000	##FFFFFF
##51187B	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367E

Deuteranopia (green-blind)

#003779

Tritanopia (blue-blind)

#493149

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #51187b;
/* rgb */ color: rgb(81, 24, 123);
/* oklch */ color: oklch(35.7% 0.156 305.8);

Tailwind

colors: {
  custom: {
    50: '#875ca2',
    500: '#51187b',
    950: '#000000',
  },
}

SCSS

$custom: #51187b;
$custom-light: #875ca2;
$custom-dark: #000000;

JSON

{
  "hex": "#51187b",
  "rgb": {
    "r": 81,
    "g": 24,
    "b": 123
  },
  "hsl": {
    "h": 274.545,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.35705,
    "c": 0.15624,
    "h": 305.8
  },
  "luminance": 0.03833
}

Semantic roles & 50–950 ramp

primary

#51187B

secondary

#6FB03F

accent

#EA3E87

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C040F

muted

#7D797F

Preview Lab

Preview with #51187B

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

Preview Lab → · Contrast checker → · Palette generator →