#4C180C#4C180C

#4C180C is a dark, moderate red. Relative luminance 0.022; OKLCH L 29.0% C 0.082 H 34.4°. Best body text is #FFFFFF at 14.55:1 contrast (WCAG AA passes).

Color values

HEX	#4C180C
RGB	rgb(76, 24, 12)
HSL	hsl(11, 73%, 17%)
HSV	hsv(11, 84%, 30%)
CMYK	cmyk(0%, 68.4%, 84.2%, 70.2%)
CIE-LAB	lab(16.59, 23.86, 20.04)
CIE-LCH	lch(16.59, 31.17, 40.03°)
OKLab	oklab(29% 0.0676 0.0462)
OKLCH	oklch(29% 0.082 34.4)
XYZ	xyz(3.3738, 2.2168, 0.5980)
Luminance	0.0222 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C180C #0C404C

analogous

#4C0C20 #4C180C #4C380C

triadic

#4C180C #0C4C18 #180C4C

tetradic

#4C180C #204C0C #0C404C #380C4C

square

#4C180C #204C0C #0C404C #380C4C

split-complementary

#4C180C #0C4C38 #0C204C

monochromatic

#1A0804 #1A0804 #4C180C #812914 #B6391D

Accessibility & contrast

On white

14.55

#4C180C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#4C180C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C180C

14.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C180C	#FFFFFF	#000000	##FFFFFF
##4C180C	1.00	14.55	1.44	14.55
#FFFFFF	14.55	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27220A

Deuteranopia (green-blind)

#332D0A

Tritanopia (blue-blind)

#540B16

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #4c180c;
/* rgb */ color: rgb(76, 24, 12);
/* oklch */ color: oklch(29.0% 0.082 34.4);

Tailwind

colors: {
  custom: {
    50: '#83574c',
    500: '#4c180c',
    950: '#000000',
  },
}

SCSS

$custom: #4c180c;
$custom-light: #83574c;
$custom-dark: #000000;

JSON

{
  "hex": "#4c180c",
  "rgb": {
    "r": 76,
    "g": 24,
    "b": 12
  },
  "hsl": {
    "h": 11.25,
    "s": 72.727,
    "l": 17.255
  },
  "oklch": {
    "l": 0.28998,
    "c": 0.08187,
    "h": 34.4
  },
  "luminance": 0.02216
}

Semantic roles & 50–950 ramp

primary

#4C180C

secondary

#2C7788

accent

#CDEF38

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #4C180C

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

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