#331B3A#331B3A

#331B3A is a dark, moderate purple. Relative luminance 0.018; OKLCH L 26.9% C 0.064 H 318.3°. Best body text is #FFFFFF at 15.46:1 contrast (WCAG AA passes).

Color values

HEX	#331B3A
RGB	rgb(51, 27, 58)
HSL	hsl(286, 36%, 17%)
HSV	hsv(286, 53%, 23%)
CMYK	cmyk(12.1%, 53.4%, 0%, 77.3%)
CIE-LAB	lab(14.36, 18.24, -15.31)
CIE-LCH	lch(14.36, 23.81, 319.99°)
OKLab	oklab(26.92% 0.0475 -0.0423)
OKLCH	oklch(26.92% 0.064 318.3)
XYZ	xyz(2.5208, 1.7932, 4.2155)
Luminance	0.0179 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B3A #223A1B

analogous

#241B3A #331B3A #3A1B32

triadic

#331B3A #3A331B #1B3A33

tetradic

#331B3A #3A241B #223A1B #1B323A

square

#331B3A #3A241B #223A1B #1B323A

split-complementary

#331B3A #323A1B #1B3A24

monochromatic

#120A15 #120A15 #331B3A #582E64 #7C428E

Accessibility & contrast

On white

15.46

#331B3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#331B3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B3A

15.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B3A	#FFFFFF	#000000	##FFFFFF
##331B3A	1.00	15.46	1.36	15.46
#FFFFFF	15.46	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16233B

Deuteranopia (green-blind)

#1D2539

Tritanopia (blue-blind)

#331F27

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #331b3a;
/* rgb */ color: rgb(51, 27, 58);
/* oklch */ color: oklch(26.9% 0.064 318.3);

Tailwind

colors: {
  custom: {
    50: '#6b5870',
    500: '#331b3a',
    950: '#000000',
  },
}

SCSS

$custom: #331b3a;
$custom-light: #6b5870;
$custom-dark: #000000;

JSON

{
  "hex": "#331b3a",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 58
  },
  "hsl": {
    "h": 286.452,
    "s": 36.471,
    "l": 16.667
  },
  "oklch": {
    "l": 0.26924,
    "c": 0.06363,
    "h": 318.3
  },
  "luminance": 0.01793
}

Semantic roles & 50–950 ramp

primary

#331B3A

secondary

#4C6F42

accent

#CC5B75

background

#F6F5F6

surface

#EBE9EC

border

#C6C5C7

text

#070307

muted

#7A787A

Preview Lab

Preview with #331B3A

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

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