#4D181F#4D181F

#4D181F is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.6% C 0.080 H 15.6°. Best body text is #FFFFFF at 14.32:1 contrast (WCAG AA passes).

Color values

HEX	#4D181F
RGB	rgb(77, 24, 31)
HSL	hsl(352, 52%, 20%)
HSV	hsv(352, 69%, 30%)
CMYK	cmyk(0%, 68.8%, 59.7%, 69.8%)
CIE-LAB	lab(17.13, 25.64, 8.61)
CIE-LCH	lch(17.13, 27.04, 18.56°)
OKLab	oklab(29.56% 0.0771 0.0215)
OKLCH	oklch(29.56% 0.08 15.6)
XYZ	xyz(3.6348, 2.3304, 1.5545)
Luminance	0.0233 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D181F #184D46

analogous

#4D183A #4D181F #4D2B18

triadic

#4D181F #1F4D18 #181F4D

tetradic

#4D181F #3A4D18 #184D46 #2B184D

square

#4D181F #3A4D18 #184D46 #2B184D

split-complementary

#4D181F #184D2B #183A4D

monochromatic

#170709 #1E090C #4D181F #7C2732 #AA3545

Accessibility & contrast

On white

14.32

#4D181F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#4D181F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4D181F

14.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D181F	#FFFFFF	#000000	##FFFFFF
##4D181F	1.00	14.32	1.47	14.32
#FFFFFF	14.32	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25231F

Deuteranopia (green-blind)

#322E1E

Tritanopia (blue-blind)

#550F1B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #4d181f;
/* rgb */ color: rgb(77, 24, 31);
/* oklch */ color: oklch(29.6% 0.080 15.6);

Tailwind

colors: {
  custom: {
    50: '#83585a',
    500: '#4d181f',
    950: '#000000',
  },
}

SCSS

$custom: #4d181f;
$custom-light: #83585a;
$custom-dark: #000000;

JSON

{
  "hex": "#4d181f",
  "rgb": {
    "r": 77,
    "g": 24,
    "b": 31
  },
  "hsl": {
    "h": 352.075,
    "s": 52.475,
    "l": 19.804
  },
  "oklch": {
    "l": 0.2956,
    "c": 0.08002,
    "h": 15.6
  },
  "luminance": 0.0233
}

Semantic roles & 50–950 ramp

primary

#4D181F

secondary

#3D847A

accent

#DCC94C

background

#F8F5F5

surface

#EFE9E9

border

#CAC5C5

text

#0B0303

muted

#7C7878

Preview Lab

Preview with #4D181F

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

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