#4C181D#4C181D

#4C181D is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.3% C 0.079 H 17.7°. Best body text is #FFFFFF at 14.43:1 contrast (WCAG AA passes).

Color values

HEX	#4C181D
RGB	rgb(76, 24, 29)
HSL	hsl(354, 52%, 20%)
HSV	hsv(354, 68%, 30%)
CMYK	cmyk(0%, 68.4%, 61.8%, 70.2%)
CIE-LAB	lab(16.89, 25.05, 9.67)
CIE-LCH	lch(16.89, 26.85, 21.10°)
OKLab	oklab(29.32% 0.075 0.024)
OKLCH	oklch(29.32% 0.079 17.7)
XYZ	xyz(3.5292, 2.2789, 1.4162)
Luminance	0.0228 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C181D #184C47

analogous

#4C1837 #4C181D #4C2D18

triadic

#4C181D #1D4C18 #181D4C

tetradic

#4C181D #374C18 #184C47 #2D184C

square

#4C181D #374C18 #184C47 #2D184C

split-complementary

#4C181D #184C2D #18374C

monochromatic

#170709 #1D090B #4C181D #7B272F #A93540

Accessibility & contrast

On white

14.43

#4C181D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#4C181D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C181D

14.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C181D	#FFFFFF	#000000	##FFFFFF
##4C181D	1.00	14.43	1.46	14.43
#FFFFFF	14.43	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25231D

Deuteranopia (green-blind)

#322E1C

Tritanopia (blue-blind)

#540F1A

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #4c181d;
/* rgb */ color: rgb(76, 24, 29);
/* oklch */ color: oklch(29.3% 0.079 17.7);

Tailwind

colors: {
  custom: {
    50: '#825858',
    500: '#4c181d',
    950: '#000000',
  },
}

SCSS

$custom: #4c181d;
$custom-light: #825858;
$custom-dark: #000000;

JSON

{
  "hex": "#4c181d",
  "rgb": {
    "r": 76,
    "g": 24,
    "b": 29
  },
  "hsl": {
    "h": 354.231,
    "s": 52,
    "l": 19.608
  },
  "oklch": {
    "l": 0.29322,
    "c": 0.07872,
    "h": 17.7
  },
  "luminance": 0.02278
}

Semantic roles & 50–950 ramp

primary

#4C181D

secondary

#3D837C

accent

#DBCE4C

background

#F8F5F5

surface

#EFE9E9

border

#CAC5C5

text

#0B0303

muted

#7C7878

Preview Lab

Preview with #4C181D

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

Preview Lab → · Contrast checker → · Palette generator →