#5B1313#5B1313

#5B1313 is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.4% C 0.104 H 25.5°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#5B1313
RGB	rgb(91, 19, 19)
HSL	hsl(0, 65%, 22%)
HSV	hsv(0, 79%, 36%)
CMYK	cmyk(0%, 79.1%, 79.1%, 64.3%)
CIE-LAB	lab(18.96, 32.38, 19.84)
CIE-LCH	lch(18.96, 37.97, 31.49°)
OKLab	oklab(31.39% 0.0939 0.0448)
OKLCH	oklch(31.39% 0.104 25.5)
XYZ	xyz(4.6653, 2.7376, 0.8987)
Luminance	0.0274 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1313 #135B5B

analogous

#5B1337 #5B1313 #5B3713

triadic

#5B1313 #135B13 #13135B

tetradic

#5B1313 #375B13 #135B5B #37135B

square

#5B1313 #375B13 #135B5B #37135B

split-complementary

#5B1313 #135B37 #13375B

monochromatic

#190505 #280808 #5B1313 #8E1E1E #C02828

Accessibility & contrast

On white

13.57

#5B1313 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#5B1313 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1313

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1313	#FFFFFF	#000000	##FFFFFF
##5B1313	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282412

Deuteranopia (green-blind)

#3A3410

Tritanopia (blue-blind)

#650014

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #5b1313;
/* rgb */ color: rgb(91, 19, 19);
/* oklch */ color: oklch(31.4% 0.104 25.5);

Tailwind

colors: {
  custom: {
    50: '#905750',
    500: '#5b1313',
    950: '#000000',
  },
}

SCSS

$custom: #5b1313;
$custom-light: #905750;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1313",
  "rgb": {
    "r": 91,
    "g": 19,
    "b": 19
  },
  "hsl": {
    "h": 0,
    "s": 65.455,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31388,
    "c": 0.10403,
    "h": 25.5
  },
  "luminance": 0.02737
}

Semantic roles & 50–950 ramp

primary

#5B1313

secondary

#379393

accent

#E8E83F

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0302

muted

#7E7878

Preview Lab

Preview with #5B1313

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

Preview Lab → · Contrast checker → · Palette generator →