#4C180F#4C180F

#4C180F is a dark, moderate red. Relative luminance 0.022; OKLCH L 29.0% C 0.081 H 32.0°. Best body text is #FFFFFF at 14.53:1 contrast (WCAG AA passes).

Color values

HEX	#4C180F
RGB	rgb(76, 24, 15)
HSL	hsl(9, 67%, 18%)
HSV	hsv(9, 80%, 30%)
CMYK	cmyk(0%, 68.4%, 80.3%, 70.2%)
CIE-LAB	lab(16.62, 24.02, 18.61)
CIE-LCH	lch(16.62, 30.39, 37.77°)
OKLab	oklab(29.04% 0.0687 0.043)
OKLCH	oklch(29.04% 0.081 32)
XYZ	xyz(3.3937, 2.2247, 0.7026)
Luminance	0.0222 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C180F #0F434C

analogous

#4C0F25 #4C180F #4C360F

triadic

#4C180F #0F4C18 #180F4C

tetradic

#4C180F #254C0F #0F434C #360F4C

square

#4C180F #254C0F #0F434C #360F4C

split-complementary

#4C180F #0F4C36 #0F254C

monochromatic

#1A0805 #1A0805 #4C180F #7F2819 #B23823

Accessibility & contrast

On white

14.53

#4C180F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#4C180F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C180F

14.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C180F	#FFFFFF	#000000	##FFFFFF
##4C180F	1.00	14.53	1.44	14.53
#FFFFFF	14.53	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26220E

Deuteranopia (green-blind)

#332D0D

Tritanopia (blue-blind)

#540C16

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #4c180f;
/* rgb */ color: rgb(76, 24, 15);
/* oklch */ color: oklch(29.0% 0.081 32.0);

Tailwind

colors: {
  custom: {
    50: '#83574e',
    500: '#4c180f',
    950: '#000000',
  },
}

SCSS

$custom: #4c180f;
$custom-light: #83574e;
$custom-dark: #000000;

JSON

{
  "hex": "#4c180f",
  "rgb": {
    "r": 76,
    "g": 24,
    "b": 15
  },
  "hsl": {
    "h": 8.852,
    "s": 67.033,
    "l": 17.843
  },
  "oklch": {
    "l": 0.2904,
    "c": 0.08106,
    "h": 32
  },
  "luminance": 0.02224
}

Semantic roles & 50–950 ramp

primary

#4C180F

secondary

#317A86

accent

#D1EA3E

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #4C180F

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

Preview Lab → · Contrast checker → · Palette generator →