#4C181F#4C181F

#4C181F is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.4% C 0.079 H 15.3°. Best body text is #FFFFFF at 14.41:1 contrast (WCAG AA passes).

Color values

HEX	#4C181F
RGB	rgb(76, 24, 31)
HSL	hsl(352, 52%, 20%)
HSV	hsv(352, 68%, 30%)
CMYK	cmyk(0%, 68.4%, 59.2%, 70.2%)
CIE-LAB	lab(16.94, 25.24, 8.31)
CIE-LCH	lch(16.94, 26.57, 18.22°)
OKLab	oklab(29.38% 0.0759 0.0208)
OKLCH	oklch(29.38% 0.079 15.3)
XYZ	xyz(3.5547, 2.2891, 1.5507)
Luminance	0.0229 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C181F #184C45

analogous

#4C1839 #4C181F #4C2B18

triadic

#4C181F #1F4C18 #181F4C

tetradic

#4C181F #394C18 #184C45 #2B184C

square

#4C181F #394C18 #184C45 #2B184C

split-complementary

#4C181F #184C2B #18394C

monochromatic

#170709 #1D090C #4C181F #7B2732 #A93545

Accessibility & contrast

On white

14.41

#4C181F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#4C181F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C181F

14.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C181F	#FFFFFF	#000000	##FFFFFF
##4C181F	1.00	14.41	1.46	14.41
#FFFFFF	14.41	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24231F

Deuteranopia (green-blind)

#312E1E

Tritanopia (blue-blind)

#540F1B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #4c181f;
/* rgb */ color: rgb(76, 24, 31);
/* oklch */ color: oklch(29.4% 0.079 15.3);

Tailwind

colors: {
  custom: {
    50: '#82585a',
    500: '#4c181f',
    950: '#000000',
  },
}

SCSS

$custom: #4c181f;
$custom-light: #82585a;
$custom-dark: #000000;

JSON

{
  "hex": "#4c181f",
  "rgb": {
    "r": 76,
    "g": 24,
    "b": 31
  },
  "hsl": {
    "h": 351.923,
    "s": 52,
    "l": 19.608
  },
  "oklch": {
    "l": 0.29375,
    "c": 0.07874,
    "h": 15.3
  },
  "luminance": 0.02289
}

Semantic roles & 50–950 ramp

primary

#4C181F

secondary

#3D8379

accent

#DBC84C

background

#F8F5F5

surface

#EFE9E9

border

#CAC5C5

text

#0B0303

muted

#7C7878

Preview Lab

Preview with #4C181F

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

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