#31105C#31105C

#31105C is a dark, vivid violet. Relative luminance 0.018; OKLCH L 27.7% C 0.125 H 297.1°. Best body text is #FFFFFF at 15.45:1 contrast (WCAG AA passes).

Color values

HEX	#31105C
RGB	rgb(49, 16, 92)
HSL	hsl(266, 70%, 21%)
HSV	hsv(266, 83%, 36%)
CMYK	cmyk(46.7%, 82.6%, 0%, 63.9%)
CIE-LAB	lab(14.38, 33.53, -38.73)
CIE-LCH	lch(14.38, 51.22, 310.89°)
OKLab	oklab(27.71% 0.0567 -0.1109)
OKLCH	oklch(27.71% 0.125 297.1)
XYZ	xyz(3.3832, 1.7962, 10.2916)
Luminance	0.0180 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 3.27

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31105C #3B5C10

analogous

#10155C #31105C #57105C

triadic

#31105C #5C3110 #105C31

tetradic

#31105C #5C1015 #3B5C10 #105C57

square

#31105C #5C1015 #3B5C10 #105C57

split-complementary

#31105C #5C5710 #155C10

monochromatic

#0E051A #150728 #31105C #4D1990 #6922C4

Accessibility & contrast

On white

15.45

#31105C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#31105C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31105C

15.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31105C	#FFFFFF	#000000	##FFFFFF
##31105C	1.00	15.45	1.36	15.45
#FFFFFF	15.45	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255E

Deuteranopia (green-blind)

#00235B

Tritanopia (blue-blind)

#262536

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #31105c;
/* rgb */ color: rgb(49, 16, 92);
/* oklch */ color: oklch(27.7% 0.125 297.1);

Tailwind

colors: {
  custom: {
    50: '#6e528b',
    500: '#31105c',
    950: '#000000',
  },
}

SCSS

$custom: #31105c;
$custom-light: #6e528b;
$custom-dark: #000000;

JSON

{
  "hex": "#31105c",
  "rgb": {
    "r": 49,
    "g": 16,
    "b": 92
  },
  "hsl": {
    "h": 266.053,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.2771,
    "c": 0.12456,
    "h": 297.1
  },
  "luminance": 0.01796
}

Semantic roles & 50–950 ramp

primary

#31105C

secondary

#6A9533

accent

#ED3BA0

background

#F6F4F8

surface

#ECE7F0

border

#C7C3CB

text

#08020C

muted

#7B787D

Preview Lab

Preview with #31105C

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

Preview Lab → · Contrast checker → · Palette generator →