#331B31#331B31

#331B31 is a dark, muted purple. Relative luminance 0.017; OKLCH L 26.4% C 0.052 H 330.0°. Best body text is #FFFFFF at 15.65:1 contrast (WCAG AA passes).

Color values

HEX	#331B31
RGB	rgb(51, 27, 49)
HSL	hsl(305, 31%, 15%)
HSV	hsv(305, 47%, 20%)
CMYK	cmyk(0%, 47.1%, 3.9%, 80%)
CIE-LAB	lab(13.88, 16.06, -9.64)
CIE-LCH	lch(13.88, 18.73, 329.03°)
OKLab	oklab(26.41% 0.0452 -0.0261)
OKLCH	oklch(26.41% 0.052 330)
XYZ	xyz(2.3115, 1.7095, 3.1134)
Luminance	0.0171 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B31 #1B331D

analogous

#291B33 #331B31 #331B25

triadic

#331B31 #31331B #1B3133

tetradic

#331B31 #33291B #1B331D #1B2533

square

#331B31 #33291B #1B331D #1B2533

split-complementary

#331B31 #25331B #1B3329

monochromatic

#140B13 #140B13 #331B31 #5B3057 #83457E

Accessibility & contrast

On white

15.65

#331B31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#331B31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B31

15.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B31	#FFFFFF	#000000	##FFFFFF
##331B31	1.00	15.65	1.34	15.65
#FFFFFF	15.65	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A2132

Deuteranopia (green-blind)

#202530

Tritanopia (blue-blind)

#351D23

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #331b31;
/* rgb */ color: rgb(51, 27, 49);
/* oklch */ color: oklch(26.4% 0.052 330.0);

Tailwind

colors: {
  custom: {
    50: '#6b5869',
    500: '#331b31',
    950: '#000000',
  },
}

SCSS

$custom: #331b31;
$custom-light: #6b5869;
$custom-dark: #000000;

JSON

{
  "hex": "#331b31",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 49
  },
  "hsl": {
    "h": 305,
    "s": 30.769,
    "l": 15.294
  },
  "oklch": {
    "l": 0.26408,
    "c": 0.05223,
    "h": 330
  },
  "luminance": 0.01709
}

Semantic roles & 50–950 ramp

primary

#331B31

secondary

#436746

accent

#C76961

background

#F6F5F6

surface

#EBE9EB

border

#C6C5C6

text

#070306

muted

#7A787A

Preview Lab

Preview with #331B31

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

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