#5B191B#5B191B

#5B191B is a dark, moderate red. Relative luminance 0.030; OKLCH L 32.2% C 0.096 H 22.7°. Best body text is #FFFFFF at 13.13:1 contrast (WCAG AA passes).

Color values

HEX	#5B191B
RGB	rgb(91, 25, 27)
HSL	hsl(358, 57%, 23%)
HSV	hsv(358, 73%, 36%)
CMYK	cmyk(0%, 72.5%, 70.3%, 64.3%)
CIE-LAB	lab(20.04, 30.24, 15.74)
CIE-LCH	lch(20.04, 34.09, 27.50°)
OKLab	oklab(32.24% 0.089 0.0373)
OKLCH	oklch(32.24% 0.096 22.7)
XYZ	xyz(4.8603, 2.9992, 1.3597)
Luminance	0.0300 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B191B #195B59

analogous

#5B193C #5B191B #5B3819

triadic

#5B191B #1B5B19 #191B5B

tetradic

#5B191B #3C5B19 #195B59 #38195B

square

#5B191B #3C5B19 #195B59 #38195B

split-complementary

#5B191B #195B38 #193C5B

monochromatic

#180707 #2B0C0D #5B191B #8B2629 #BB3337

Accessibility & contrast

On white

13.13

#5B191B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#5B191B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B191B

13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B191B	#FFFFFF	#000000	##FFFFFF
##5B191B	1.00	13.13	1.60	13.13
#FFFFFF	13.13	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B271B

Deuteranopia (green-blind)

#3B3619

Tritanopia (blue-blind)

#64081A

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #5b191b;
/* rgb */ color: rgb(91, 25, 27);
/* oklch */ color: oklch(32.2% 0.096 22.7);

Tailwind

colors: {
  custom: {
    50: '#8f5a57',
    500: '#5b191b',
    950: '#000000',
  },
}

SCSS

$custom: #5b191b;
$custom-light: #8f5a57;
$custom-dark: #000000;

JSON

{
  "hex": "#5b191b",
  "rgb": {
    "r": 91,
    "g": 25,
    "b": 27
  },
  "hsl": {
    "h": 358.182,
    "s": 56.897,
    "l": 22.745
  },
  "oklch": {
    "l": 0.32237,
    "c": 0.09649,
    "h": 22.7
  },
  "luminance": 0.02999
}

Semantic roles & 50–950 ramp

primary

#5B191B

secondary

#3F918F

accent

#E0DC48

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #5B191B

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

Preview Lab → · Contrast checker → · Palette generator →