#331B37#331B37

#331B37 is a dark, muted purple. Relative luminance 0.018; OKLCH L 26.7% C 0.060 H 321.7°. Best body text is #FFFFFF at 15.52:1 contrast (WCAG AA passes).

Color values

HEX	#331B37
RGB	rgb(51, 27, 55)
HSL	hsl(291, 34%, 16%)
HSV	hsv(291, 51%, 22%)
CMYK	cmyk(7.3%, 50.9%, 0%, 78.4%)
CIE-LAB	lab(14.19, 17.49, -13.44)
CIE-LCH	lch(14.19, 22.06, 322.44°)
OKLab	oklab(26.74% 0.0468 -0.037)
OKLCH	oklch(26.74% 0.06 321.7)
XYZ	xyz(2.4467, 1.7636, 3.8252)
Luminance	0.0176 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B37 #1F371B

analogous

#251B37 #331B37 #371B2D

triadic

#331B37 #37331B #1B3733

tetradic

#331B37 #37251B #1F371B #1B2D37

square

#331B37 #37251B #1F371B #1B2D37

split-complementary

#331B37 #2D371B #1B3725

monochromatic

#130A15 #130A15 #331B37 #592F60 #7F4389

Accessibility & contrast

On white

15.52

#331B37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#331B37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B37

15.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B37	#FFFFFF	#000000	##FFFFFF
##331B37	1.00	15.52	1.35	15.52
#FFFFFF	15.52	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172238

Deuteranopia (green-blind)

#1E2536

Tritanopia (blue-blind)

#341E26

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #331b37;
/* rgb */ color: rgb(51, 27, 55);
/* oklch */ color: oklch(26.7% 0.060 321.7);

Tailwind

colors: {
  custom: {
    50: '#6b586e',
    500: '#331b37',
    950: '#000000',
  },
}

SCSS

$custom: #331b37;
$custom-light: #6b586e;
$custom-dark: #000000;

JSON

{
  "hex": "#331b37",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 55
  },
  "hsl": {
    "h": 291.429,
    "s": 34.146,
    "l": 16.078
  },
  "oklch": {
    "l": 0.26744,
    "c": 0.05967,
    "h": 321.7
  },
  "luminance": 0.01764
}

Semantic roles & 50–950 ramp

primary

#331B37

secondary

#486C42

accent

#CA5E6D

background

#F6F5F6

surface

#EBE9EB

border

#C6C5C6

text

#070307

muted

#7A787A

Preview Lab

Preview with #331B37

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

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