#5C181D#5C181D

#5C181D is a dark, moderate red. Relative luminance 0.030; OKLCH L 32.3% C 0.099 H 20.6°. Best body text is #FFFFFF at 13.10:1 contrast (WCAG AA passes).

Color values

HEX	#5C181D
RGB	rgb(92, 24, 29)
HSL	hsl(356, 59%, 23%)
HSV	hsv(356, 74%, 36%)
CMYK	cmyk(0%, 73.9%, 68.5%, 63.9%)
CIE-LAB	lab(20.12, 31.21, 14.50)
CIE-LCH	lch(20.12, 34.41, 24.92°)
OKLab	oklab(32.34% 0.0924 0.0347)
OKLCH	oklch(32.34% 0.099 20.6)
XYZ	xyz(4.9625, 3.0180, 1.4834)
Luminance	0.0302 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5C181D #185C57

analogous

#5C183F #5C181D #5C3518

triadic

#5C181D #1D5C18 #181D5C

tetradic

#5C181D #3F5C18 #185C57 #35185C

square

#5C181D #3F5C18 #185C57 #35185C

split-complementary

#5C181D #185C35 #183F5C

monochromatic

#180608 #2B0B0E #5C181D #8D252C #BD313C

Accessibility & contrast

On white

13.10

#5C181D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#5C181D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5C181D

13.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5C181D	#FFFFFF	#000000	##FFFFFF
##5C181D	1.00	13.10	1.60	13.10
#FFFFFF	13.10	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A271D

Deuteranopia (green-blind)

#3B361B

Tritanopia (blue-blind)

#65061A

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #5c181d;
/* rgb */ color: rgb(92, 24, 29);
/* oklch */ color: oklch(32.3% 0.099 20.6);

Tailwind

colors: {
  custom: {
    50: '#8f5a58',
    500: '#5c181d',
    950: '#000000',
  },
}

SCSS

$custom: #5c181d;
$custom-light: #8f5a58;
$custom-dark: #000000;

JSON

{
  "hex": "#5c181d",
  "rgb": {
    "r": 92,
    "g": 24,
    "b": 29
  },
  "hsl": {
    "h": 355.588,
    "s": 58.621,
    "l": 22.745
  },
  "oklch": {
    "l": 0.32343,
    "c": 0.09869,
    "h": 20.6
  },
  "luminance": 0.03017
}

Semantic roles & 50–950 ramp

primary

#5C181D

secondary

#3D938C

accent

#E2D646

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #5C181D

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

Preview Lab → · Contrast checker → · Palette generator →