#331F40#331F40

#331F40 is a dark, moderate violet. Relative luminance 0.021; OKLCH L 28.1% C 0.064 H 310.8°. Best body text is #FFFFFF at 14.89:1 contrast (WCAG AA passes).

Color values

HEX	#331F40
RGB	rgb(51, 31, 64)
HSL	hsl(276, 35%, 19%)
HSV	hsv(276, 52%, 25%)
CMYK	cmyk(20.3%, 51.6%, 0%, 74.9%)
CIE-LAB	lab(15.77, 17.13, -17.32)
CIE-LCH	lch(15.77, 24.36, 314.69°)
OKLab	oklab(28.09% 0.0416 -0.0482)
OKLCH	oklch(28.09% 0.064 310.8)
XYZ	xyz(2.7805, 2.0540, 5.0995)
Luminance	0.0205 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331F40 #2C401F

analogous

#221F40 #331F40 #401F3C

triadic

#331F40 #40331F #1F4033

tetradic

#331F40 #40221F #2C401F #1F3C40

square

#331F40 #40221F #2C401F #1F3C40

split-complementary

#331F40 #3C401F #1F4022

monochromatic

#100A15 #120B17 #331F40 #543369 #754792

Accessibility & contrast

On white

14.89

#331F40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#331F40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331F40

14.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331F40	#FFFFFF	#000000	##FFFFFF
##331F40	1.00	14.89	1.41	14.89
#FFFFFF	14.89	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#182641

Deuteranopia (green-blind)

#1D283F

Tritanopia (blue-blind)

#32242C

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #331f40;
/* rgb */ color: rgb(51, 31, 64);
/* oklch */ color: oklch(28.1% 0.064 310.8);

Tailwind

colors: {
  custom: {
    50: '#6b5b75',
    500: '#331f40',
    950: '#000000',
  },
}

SCSS

$custom: #331f40;
$custom-light: #6b5b75;
$custom-dark: #000000;

JSON

{
  "hex": "#331f40",
  "rgb": {
    "r": 51,
    "g": 31,
    "b": 64
  },
  "hsl": {
    "h": 276.364,
    "s": 34.737,
    "l": 18.627
  },
  "oklch": {
    "l": 0.28087,
    "c": 0.06365,
    "h": 310.8
  },
  "luminance": 0.02054
}

Semantic roles & 50–950 ramp

primary

#331F40

secondary

#597447

accent

#CB5D88

background

#F6F5F7

surface

#EBE9ED

border

#C6C5C8

text

#070408

muted

#7A797B

Preview Lab

Preview with #331F40

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

Preview Lab → · Contrast checker → · Palette generator →