#4C181C#4C181C

#4C181C is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.3% C 0.079 H 18.9°. Best body text is #FFFFFF at 14.43:1 contrast (WCAG AA passes).

Color values

HEX	#4C181C
RGB	rgb(76, 24, 28)
HSL	hsl(355, 52%, 20%)
HSV	hsv(355, 68%, 30%)
CMYK	cmyk(0%, 68.4%, 63.2%, 70.2%)
CIE-LAB	lab(16.86, 24.96, 10.35)
CIE-LCH	lch(16.86, 27.02, 22.52°)
OKLab	oklab(29.3% 0.0745 0.0255)
OKLCH	oklch(29.3% 0.079 18.9)
XYZ	xyz(3.5170, 2.2741, 1.3521)
Luminance	0.0227 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C181C #184C48

analogous

#4C1836 #4C181C #4C2E18

triadic

#4C181C #1C4C18 #181C4C

tetradic

#4C181C #364C18 #184C48 #2E184C

square

#4C181C #364C18 #184C48 #2E184C

split-complementary

#4C181C #184C2E #18364C

monochromatic

#170709 #1D090B #4C181C #7B272D #A9353E

Accessibility & contrast

On white

14.43

#4C181C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#4C181C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C181C

14.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C181C	#FFFFFF	#000000	##FFFFFF
##4C181C	1.00	14.43	1.45	14.43
#FFFFFF	14.43	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25231C

Deuteranopia (green-blind)

#322E1B

Tritanopia (blue-blind)

#540E1A

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #4c181c;
/* rgb */ color: rgb(76, 24, 28);
/* oklch */ color: oklch(29.3% 0.079 18.9);

Tailwind

colors: {
  custom: {
    50: '#825857',
    500: '#4c181c',
    950: '#000000',
  },
}

SCSS

$custom: #4c181c;
$custom-light: #825857;
$custom-dark: #000000;

JSON

{
  "hex": "#4c181c",
  "rgb": {
    "r": 76,
    "g": 24,
    "b": 28
  },
  "hsl": {
    "h": 355.385,
    "s": 52,
    "l": 19.608
  },
  "oklch": {
    "l": 0.29297,
    "c": 0.07876,
    "h": 18.9
  },
  "luminance": 0.02274
}

Semantic roles & 50–950 ramp

primary

#4C181C

secondary

#3D837D

accent

#DBD04C

background

#F8F5F5

surface

#EFE9E9

border

#CAC5C5

text

#0B0303

muted

#7C7878

Preview Lab

Preview with #4C181C

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

Preview Lab → · Contrast checker → · Palette generator →