#331B1C#331B1C

#331B1C is a dark, muted red. Relative luminance 0.016; OKLCH L 25.5% C 0.038 H 17.4°. Best body text is #FFFFFF at 15.98:1 contrast (WCAG AA passes).

Color values

HEX	#331B1C
RGB	rgb(51, 27, 28)
HSL	hsl(358, 31%, 15%)
HSV	hsv(358, 47%, 20%)
CMYK	cmyk(0%, 47.1%, 45.1%, 80%)
CIE-LAB	lab(13.06, 12.03, 4.41)
CIE-LCH	lch(13.06, 12.81, 20.13°)
OKLab	oklab(25.51% 0.0364 0.0114)
OKLCH	oklch(25.51% 0.038 17.4)
XYZ	xyz(1.9669, 1.5717, 1.2982)
Luminance	0.0157 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B1C #1B3332

analogous

#331B28 #331B1C #33261B

triadic

#331B1C #1C331B #1B1C33

tetradic

#331B1C #28331B #1B3332 #261B33

square

#331B1C #28331B #1B3332 #261B33

split-complementary

#331B1C #1B3326 #1B2833

monochromatic

#140B0B #140B0B #331B1C #5B3032 #834548

Accessibility & contrast

On white

15.98

#331B1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#331B1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B1C

15.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B1C	#FFFFFF	#000000	##FFFFFF
##331B1C	1.00	15.98	1.31	15.98
#FFFFFF	15.98	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#201F1C

Deuteranopia (green-blind)

#26231C

Tritanopia (blue-blind)

#37181B

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #331b1c;
/* rgb */ color: rgb(51, 27, 28);
/* oklch */ color: oklch(25.5% 0.038 17.4);

Tailwind

colors: {
  custom: {
    50: '#6c5757',
    500: '#331b1c',
    950: '#000000',
  },
}

SCSS

$custom: #331b1c;
$custom-light: #6c5757;
$custom-dark: #000000;

JSON

{
  "hex": "#331b1c",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 28
  },
  "hsl": {
    "h": 357.5,
    "s": 30.769,
    "l": 15.294
  },
  "oklch": {
    "l": 0.25509,
    "c": 0.03817,
    "h": 17.4
  },
  "luminance": 0.01572
}

Semantic roles & 50–950 ramp

primary

#331B1C

secondary

#436766

accent

#C7C361

background

#F6F5F5

surface

#EBE9E9

border

#C6C5C5

text

#070303

muted

#7A7878

Preview Lab

Preview with #331B1C

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

Preview Lab → · Contrast checker → · Palette generator →