#4D181D#4D181D

#4D181D is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.5% C 0.080 H 17.9°. Best body text is #FFFFFF at 14.34:1 contrast (WCAG AA passes).

Color values

HEX	#4D181D
RGB	rgb(77, 24, 29)
HSL	hsl(354, 52%, 20%)
HSV	hsv(354, 69%, 30%)
CMYK	cmyk(0%, 68.8%, 62.3%, 69.8%)
CIE-LAB	lab(17.09, 25.45, 9.97)
CIE-LCH	lch(17.09, 27.33, 21.39°)
OKLab	oklab(29.51% 0.0761 0.0246)
OKLCH	oklch(29.51% 0.08 17.9)
XYZ	xyz(3.6093, 2.3202, 1.4199)
Luminance	0.0232 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D181D #184D48

analogous

#4D1837 #4D181D #4D2E18

triadic

#4D181D #1D4D18 #181D4D

tetradic

#4D181D #374D18 #184D48 #2E184D

square

#4D181D #374D18 #184D48 #2E184D

split-complementary

#4D181D #184D2E #18374D

monochromatic

#170709 #1E090B #4D181D #7C272F #AA3540

Accessibility & contrast

On white

14.34

#4D181D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#4D181D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4D181D

14.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D181D	#FFFFFF	#000000	##FFFFFF
##4D181D	1.00	14.34	1.46	14.34
#FFFFFF	14.34	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25231D

Deuteranopia (green-blind)

#322E1C

Tritanopia (blue-blind)

#550E1A

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #4d181d;
/* rgb */ color: rgb(77, 24, 29);
/* oklch */ color: oklch(29.5% 0.080 17.9);

Tailwind

colors: {
  custom: {
    50: '#835858',
    500: '#4d181d',
    950: '#000000',
  },
}

SCSS

$custom: #4d181d;
$custom-light: #835858;
$custom-dark: #000000;

JSON

{
  "hex": "#4d181d",
  "rgb": {
    "r": 77,
    "g": 24,
    "b": 29
  },
  "hsl": {
    "h": 354.34,
    "s": 52.475,
    "l": 19.804
  },
  "oklch": {
    "l": 0.29508,
    "c": 0.08002,
    "h": 17.9
  },
  "luminance": 0.0232
}

Semantic roles & 50–950 ramp

primary

#4D181D

secondary

#3D847D

accent

#DCCE4C

background

#F8F5F5

surface

#EFE9E9

border

#CAC5C5

text

#0B0303

muted

#7C7878

Preview Lab

Preview with #4D181D

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

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