#331B3C#331B3C

#331B3C is a dark, moderate purple. Relative luminance 0.018; OKLCH L 27.0% C 0.066 H 316.2°. Best body text is #FFFFFF at 15.41:1 contrast (WCAG AA passes).

Color values

HEX	#331B3C
RGB	rgb(51, 27, 60)
HSL	hsl(284, 38%, 17%)
HSV	hsv(284, 55%, 24%)
CMYK	cmyk(15%, 55%, 0%, 76.5%)
CIE-LAB	lab(14.48, 18.75, -16.54)
CIE-LCH	lch(14.48, 25.00, 318.58°)
OKLab	oklab(27.05% 0.0479 -0.0459)
OKLCH	oklch(27.05% 0.066 316.2)
XYZ	xyz(2.5727, 1.8140, 4.4887)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B3C #243C1B

analogous

#231B3C #331B3C #3C1B35

triadic

#331B3C #3C331B #1B3C33

tetradic

#331B3C #3C231B #243C1B #1B353C

square

#331B3C #3C231B #243C1B #1B353C

split-complementary

#331B3C #353C1B #1B3C23

monochromatic

#120915 #120915 #331B3C #572E66 #7B4190

Accessibility & contrast

On white

15.41

#331B3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#331B3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B3C

15.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B3C	#FFFFFF	#000000	##FFFFFF
##331B3C	1.00	15.41	1.36	15.41
#FFFFFF	15.41	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15233D

Deuteranopia (green-blind)

#1C253B

Tritanopia (blue-blind)

#332028

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #331b3c;
/* rgb */ color: rgb(51, 27, 60);
/* oklch */ color: oklch(27.0% 0.066 316.2);

Tailwind

colors: {
  custom: {
    50: '#6b5872',
    500: '#331b3c',
    950: '#000000',
  },
}

SCSS

$custom: #331b3c;
$custom-light: #6b5872;
$custom-dark: #000000;

JSON

{
  "hex": "#331b3c",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 60
  },
  "hsl": {
    "h": 283.636,
    "s": 37.931,
    "l": 17.059
  },
  "oklch": {
    "l": 0.27049,
    "c": 0.06631,
    "h": 316.2
  },
  "luminance": 0.01814
}

Semantic roles & 50–950 ramp

primary

#331B3C

secondary

#4F7142

accent

#CE5A7A

background

#F6F5F6

surface

#EBE9EC

border

#C6C5C7

text

#070308

muted

#7A787B

Preview Lab

Preview with #331B3C

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

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