#31104B#31104B

#31104B is a dark, moderate violet. Relative luminance 0.015; OKLCH L 26.1% C 0.104 H 305.9°. Best body text is #FFFFFF at 16.07:1 contrast (WCAG AA passes).

Color values

HEX	#31104B
RGB	rgb(49, 16, 75)
HSL	hsl(274, 65%, 18%)
HSV	hsv(274, 79%, 29%)
CMYK	cmyk(34.7%, 78.7%, 0%, 70.6%)
CIE-LAB	lab(12.81, 28.80, -29.71)
CIE-LCH	lch(12.81, 41.38, 314.11°)
OKLab	oklab(26.11% 0.0611 -0.0844)
OKLCH	oklch(26.11% 0.104 305.9)
XYZ	xyz(2.7216, 1.5316, 6.8075)
Luminance	0.0153 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31104B #2A4B10

analogous

#13104B #31104B #4B1047

triadic

#31104B #4B3110 #104B31

tetradic

#31104B #4B1310 #2A4B10 #10474B

square

#31104B #4B1310 #2A4B10 #10474B

split-complementary

#31104B #474B10 #104B13

monochromatic

#100519 #100519 #31104B #521B7D #7326B0

Accessibility & contrast

On white

16.07

#31104B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#31104B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31104B

16.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31104B	#FFFFFF	#000000	##FFFFFF
##31104B	1.00	16.07	1.31	16.07
#FFFFFF	16.07	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00204D

Deuteranopia (green-blind)

#00214A

Tritanopia (blue-blind)

#2C1E2C

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #31104b;
/* rgb */ color: rgb(49, 16, 75);
/* oklch */ color: oklch(26.1% 0.104 305.9);

Tailwind

colors: {
  custom: {
    50: '#6c517e',
    500: '#31104b',
    950: '#000000',
  },
}

SCSS

$custom: #31104b;
$custom-light: #6c517e;
$custom-dark: #000000;

JSON

{
  "hex": "#31104b",
  "rgb": {
    "r": 49,
    "g": 16,
    "b": 75
  },
  "hsl": {
    "h": 273.559,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.26113,
    "c": 0.10417,
    "h": 305.9
  },
  "luminance": 0.01532
}

Semantic roles & 50–950 ramp

primary

#31104B

secondary

#568532

accent

#E8408A

background

#F6F4F7

surface

#ECE7EE

border

#C7C3C9

text

#07020A

muted

#7A787C

Preview Lab

Preview with #31104B

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

Preview Lab → · Contrast checker → · Palette generator →