#5B121D#5B121D

#5B121D is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.5% C 0.104 H 17.5°. Best body text is #FFFFFF at 13.56:1 contrast (WCAG AA passes).

Color values

HEX	#5B121D
RGB	rgb(91, 18, 29)
HSL	hsl(351, 67%, 21%)
HSV	hsv(351, 80%, 36%)
CMYK	cmyk(0%, 80.2%, 68.1%, 64.3%)
CIE-LAB	lab(19.00, 33.36, 13.02)
CIE-LCH	lch(19.00, 35.81, 21.32°)
OKLab	oklab(31.47% 0.0994 0.0314)
OKLCH	oklch(31.47% 0.104 17.5)
XYZ	xyz(4.7530, 2.7462, 1.4420)
Luminance	0.0274 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B121D #125B50

analogous

#5B1242 #5B121D #5B2C12

triadic

#5B121D #1D5B12 #121D5B

tetradic

#5B121D #425B12 #125B50 #2C125B

square

#5B121D #425B12 #125B50 #2C125B

split-complementary

#5B121D #125B2C #12425B

monochromatic

#1A0508 #28080D #5B121D #8E1C2D #C1263E

Accessibility & contrast

On white

13.56

#5B121D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#5B121D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B121D

13.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B121D	#FFFFFF	#000000	##FFFFFF
##5B121D	1.00	13.56	1.55	13.56
#FFFFFF	13.56	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26241D

Deuteranopia (green-blind)

#39341B

Tritanopia (blue-blind)

#640017

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #5b121d;
/* rgb */ color: rgb(91, 18, 29);
/* oklch */ color: oklch(31.5% 0.104 17.5);

Tailwind

colors: {
  custom: {
    50: '#8f5758',
    500: '#5b121d',
    950: '#000000',
  },
}

SCSS

$custom: #5b121d;
$custom-light: #8f5758;
$custom-dark: #000000;

JSON

{
  "hex": "#5b121d",
  "rgb": {
    "r": 91,
    "g": 18,
    "b": 29
  },
  "hsl": {
    "h": 350.959,
    "s": 66.972,
    "l": 21.373
  },
  "oklch": {
    "l": 0.31472,
    "c": 0.10424,
    "h": 17.5
  },
  "luminance": 0.02745
}

Semantic roles & 50–950 ramp

primary

#5B121D

secondary

#359385

accent

#EAD03E

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #5B121D

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

Preview Lab → · Contrast checker → · Palette generator →