#4D181C#4D181C

#4D181C is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.5% C 0.080 H 19.1°. Best body text is #FFFFFF at 14.35:1 contrast (WCAG AA passes).

Color values

HEX	#4D181C
RGB	rgb(77, 24, 28)
HSL	hsl(355, 52%, 20%)
HSV	hsv(355, 69%, 30%)
CMYK	cmyk(0%, 68.8%, 63.6%, 69.8%)
CIE-LAB	lab(17.06, 25.36, 10.65)
CIE-LCH	lch(17.06, 27.50, 22.77°)
OKLab	oklab(29.48% 0.0757 0.0262)
OKLCH	oklch(29.48% 0.08 19.1)
XYZ	xyz(3.5971, 2.3154, 1.3559)
Luminance	0.0232 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D181C #184D49

analogous

#4D1836 #4D181C #4D2F18

triadic

#4D181C #1C4D18 #181C4D

tetradic

#4D181C #364D18 #184D49 #2F184D

square

#4D181C #364D18 #184D49 #2F184D

split-complementary

#4D181C #184D2F #18364D

monochromatic

#170708 #1E090B #4D181C #7C272D #AA353E

Accessibility & contrast

On white

14.35

#4D181C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#4D181C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4D181C

14.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D181C	#FFFFFF	#000000	##FFFFFF
##4D181C	1.00	14.35	1.46	14.35
#FFFFFF	14.35	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25231C

Deuteranopia (green-blind)

#322E1B

Tritanopia (blue-blind)

#550E1A

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #4d181c;
/* rgb */ color: rgb(77, 24, 28);
/* oklch */ color: oklch(29.5% 0.080 19.1);

Tailwind

colors: {
  custom: {
    50: '#835857',
    500: '#4d181c',
    950: '#000000',
  },
}

SCSS

$custom: #4d181c;
$custom-light: #835857;
$custom-dark: #000000;

JSON

{
  "hex": "#4d181c",
  "rgb": {
    "r": 77,
    "g": 24,
    "b": 28
  },
  "hsl": {
    "h": 355.472,
    "s": 52.475,
    "l": 19.804
  },
  "oklch": {
    "l": 0.29483,
    "c": 0.08006,
    "h": 19.1
  },
  "luminance": 0.02315
}

Semantic roles & 50–950 ramp

primary

#4D181C

secondary

#3D847E

accent

#DCD14C

background

#F8F5F5

surface

#EFE9E9

border

#CAC5C5

text

#0B0303

muted

#7C7878

Preview Lab

Preview with #4D181C

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

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