#331B5C#331B5C

#331B5C is a dark, moderate violet. Relative luminance 0.023; OKLCH L 29.5% C 0.110 H 295.9°. Best body text is #FFFFFF at 14.46:1 contrast (WCAG AA passes).

Color values

HEX	#331B5C
RGB	rgb(51, 27, 92)
HSL	hsl(262, 55%, 23%)
HSV	hsv(262, 71%, 36%)
CMYK	cmyk(44.6%, 70.7%, 0%, 63.9%)
CIE-LAB	lab(16.80, 27.91, -34.77)
CIE-LCH	lch(16.80, 44.59, 308.75°)
OKLab	oklab(29.49% 0.0481 -0.0993)
OKLCH	oklch(29.49% 0.11 295.9)
XYZ	xyz(3.6884, 2.2603, 10.3651)
Luminance	0.0226 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B5C #445C1B

analogous

#1B235C #331B5C #531B5C

triadic

#331B5C #5C331B #1B5C33

tetradic

#331B5C #5C1B23 #445C1B #1B5C53

square

#331B5C #5C1B23 #445C1B #1B5C53

split-complementary

#331B5C #5C531B #235C1B

monochromatic

#0D0718 #190D2D #331B5C #4D298B #6737BB

Accessibility & contrast

On white

14.46

#331B5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#331B5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B5C

14.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B5C	#FFFFFF	#000000	##FFFFFF
##331B5C	1.00	14.46	1.45	14.46
#FFFFFF	14.46	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A5E

Deuteranopia (green-blind)

#00295B

Tritanopia (blue-blind)

#282A39

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #331b5c;
/* rgb */ color: rgb(51, 27, 92);
/* oklch */ color: oklch(29.5% 0.110 295.9);

Tailwind

colors: {
  custom: {
    50: '#6f598b',
    500: '#331b5c',
    950: '#000000',
  },
}

SCSS

$custom: #331b5c;
$custom-light: #6f598b;
$custom-dark: #000000;

JSON

{
  "hex": "#331b5c",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 92
  },
  "hsl": {
    "h": 262.154,
    "s": 54.622,
    "l": 23.333
  },
  "oklch": {
    "l": 0.29487,
    "c": 0.1103,
    "h": 295.9
  },
  "luminance": 0.0226
}

Semantic roles & 50–950 ramp

primary

#331B5C

secondary

#749241

accent

#DE4AA7

background

#F6F5F8

surface

#ECE9F0

border

#C7C5CB

text

#08030C

muted

#7B787D

Preview Lab

Preview with #331B5C

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

Preview Lab → · Contrast checker → · Palette generator →