#4F181B#4F181B

#4F181B is a dark, moderate red. Relative luminance 0.024; OKLCH L 29.8% C 0.083 H 20.5°. Best body text is #FFFFFF at 14.20:1 contrast (WCAG AA passes).

Color values

HEX	#4F181B
RGB	rgb(79, 24, 27)
HSL	hsl(357, 53%, 20%)
HSV	hsv(357, 70%, 31%)
CMYK	cmyk(0%, 69.6%, 65.8%, 69%)
CIE-LAB	lab(17.44, 26.08, 11.92)
CIE-LCH	lch(17.44, 28.67, 24.57°)
OKLab	oklab(29.83% 0.0775 0.029)
OKLCH	oklch(29.83% 0.083 20.5)
XYZ	xyz(3.7493, 2.3952, 1.3016)
Luminance	0.0239 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F181B #184F4C

analogous

#4F1837 #4F181B #4F3018

triadic

#4F181B #1B4F18 #181B4F

tetradic

#4F181B #374F18 #184F4C #30184F

square

#4F181B #374F18 #184F4C #30184F

split-complementary

#4F181B #184F30 #18374F

monochromatic

#170708 #200A0B #4F181B #7E262B #AD353B

Accessibility & contrast

On white

14.20

#4F181B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#4F181B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4F181B

14.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F181B	#FFFFFF	#000000	##FFFFFF
##4F181B	1.00	14.20	1.48	14.20
#FFFFFF	14.20	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26241B

Deuteranopia (green-blind)

#342F1A

Tritanopia (blue-blind)

#570D19

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #4f181b;
/* rgb */ color: rgb(79, 24, 27);
/* oklch */ color: oklch(29.8% 0.083 20.5);

Tailwind

colors: {
  custom: {
    50: '#855857',
    500: '#4f181b',
    950: '#000000',
  },
}

SCSS

$custom: #4f181b;
$custom-light: #855857;
$custom-dark: #000000;

JSON

{
  "hex": "#4f181b",
  "rgb": {
    "r": 79,
    "g": 24,
    "b": 27
  },
  "hsl": {
    "h": 356.727,
    "s": 53.398,
    "l": 20.196
  },
  "oklch": {
    "l": 0.29833,
    "c": 0.08272,
    "h": 20.5
  },
  "luminance": 0.02395
}

Semantic roles & 50–950 ramp

primary

#4F181B

secondary

#3D8682

accent

#DDD54B

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #4F181B

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

Preview Lab → · Contrast checker → · Palette generator →