#5C181C#5C181C

#5C181C is a dark, moderate red. Relative luminance 0.030; OKLCH L 32.3% C 0.099 H 21.4°. Best body text is #FFFFFF at 13.11:1 contrast (WCAG AA passes).

Color values

HEX	#5C181C
RGB	rgb(92, 24, 28)
HSL	hsl(356, 59%, 23%)
HSV	hsv(356, 74%, 36%)
CMYK	cmyk(0%, 73.9%, 69.6%, 63.9%)
CIE-LAB	lab(20.10, 31.14, 15.17)
CIE-LCH	lch(20.10, 34.64, 25.97°)
OKLab	oklab(32.32% 0.092 0.0361)
OKLCH	oklch(32.32% 0.099 21.4)
XYZ	xyz(4.9504, 3.0131, 1.4193)
Luminance	0.0301 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5C181C #185C58

analogous

#5C183E #5C181C #5C3618

triadic

#5C181C #1C5C18 #181C5C

tetradic

#5C181C #3E5C18 #185C58 #36185C

square

#5C181C #3E5C18 #185C58 #36185C

split-complementary

#5C181C #185C36 #183E5C

monochromatic

#180607 #2B0B0D #5C181C #8D252B #BD313A

Accessibility & contrast

On white

13.11

#5C181C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#5C181C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5C181C

13.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5C181C	#FFFFFF	#000000	##FFFFFF
##5C181C	1.00	13.11	1.60	13.11
#FFFFFF	13.11	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A271C

Deuteranopia (green-blind)

#3C361A

Tritanopia (blue-blind)

#66061A

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #5c181c;
/* rgb */ color: rgb(92, 24, 28);
/* oklch */ color: oklch(32.3% 0.099 21.4);

Tailwind

colors: {
  custom: {
    50: '#905a58',
    500: '#5c181c',
    950: '#000000',
  },
}

SCSS

$custom: #5c181c;
$custom-light: #905a58;
$custom-dark: #000000;

JSON

{
  "hex": "#5c181c",
  "rgb": {
    "r": 92,
    "g": 24,
    "b": 28
  },
  "hsl": {
    "h": 356.471,
    "s": 58.621,
    "l": 22.745
  },
  "oklch": {
    "l": 0.32323,
    "c": 0.09877,
    "h": 21.4
  },
  "luminance": 0.03012
}

Semantic roles & 50–950 ramp

primary

#5C181C

secondary

#3D938E

accent

#E2D946

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #5C181C

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

Preview Lab → · Contrast checker → · Palette generator →