#4D180B#4D180B

#4D180B is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.2% C 0.083 H 34.9°. Best body text is #FFFFFF at 14.47:1 contrast (WCAG AA passes).

Color values

HEX	#4D180B
RGB	rgb(77, 24, 11)
HSL	hsl(12, 75%, 17%)
HSV	hsv(12, 86%, 30%)
CMYK	cmyk(0%, 68.8%, 85.7%, 69.8%)
CIE-LAB	lab(16.78, 24.24, 20.76)
CIE-LCH	lch(16.78, 31.92, 40.58°)
OKLab	oklab(29.18% 0.0684 0.0478)
OKLCH	oklch(29.18% 0.083 34.9)
XYZ	xyz(3.4480, 2.2557, 0.5704)
Luminance	0.0226 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D180B #0B404D

analogous

#4D0B1F #4D180B #4D390B

triadic

#4D180B #0B4D18 #180B4D

tetradic

#4D180B #1F4D0B #0B404D #390B4D

square

#4D180B #1F4D0B #0B404D #390B4D

split-complementary

#4D180B #0B4D39 #0B1F4D

monochromatic

#1B0804 #1B0804 #4D180B #832913 #B8391A

Accessibility & contrast

On white

14.47

#4D180B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#4D180B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4D180B

14.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D180B	#FFFFFF	#000000	##FFFFFF
##4D180B	1.00	14.47	1.45	14.47
#FFFFFF	14.47	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#272209

Deuteranopia (green-blind)

#342E09

Tritanopia (blue-blind)

#550A15

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #4d180b;
/* rgb */ color: rgb(77, 24, 11);
/* oklch */ color: oklch(29.2% 0.083 34.9);

Tailwind

colors: {
  custom: {
    50: '#84574b',
    500: '#4d180b',
    950: '#000000',
  },
}

SCSS

$custom: #4d180b;
$custom-light: #84574b;
$custom-dark: #000000;

JSON

{
  "hex": "#4d180b",
  "rgb": {
    "r": 77,
    "g": 24,
    "b": 11
  },
  "hsl": {
    "h": 11.818,
    "s": 75,
    "l": 17.255
  },
  "oklch": {
    "l": 0.29175,
    "c": 0.08341,
    "h": 34.9
  },
  "luminance": 0.02255
}

Semantic roles & 50–950 ramp

primary

#4D180B

secondary

#2B7789

accent

#CDF236

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #4D180B

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

Preview Lab → · Contrast checker → · Palette generator →