#4F180B#4F180B

#4F180B is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.6% C 0.086 H 34.6°. Best body text is #FFFFFF at 14.31:1 contrast (WCAG AA passes).

Color values

HEX	#4F180B
RGB	rgb(79, 24, 11)
HSL	hsl(11, 76%, 18%)
HSV	hsv(11, 86%, 31%)
CMYK	cmyk(0%, 69.6%, 86.1%, 69%)
CIE-LAB	lab(17.18, 25.08, 21.35)
CIE-LCH	lch(17.18, 32.94, 40.41°)
OKLab	oklab(29.56% 0.0707 0.0488)
OKLCH	oklch(29.56% 0.086 34.6)
XYZ	xyz(3.6119, 2.3402, 0.5781)
Luminance	0.0234 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F180B #0B424F

analogous

#4F0B20 #4F180B #4F3A0B

triadic

#4F180B #0B4F18 #180B4F

tetradic

#4F180B #204F0B #0B424F #3A0B4F

square

#4F180B #204F0B #0B424F #3A0B4F

split-complementary

#4F180B #0B4F3A #0B204F

monochromatic

#1B0804 #1B0804 #4F180B #852812 #BA391A

Accessibility & contrast

On white

14.31

#4F180B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#4F180B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4F180B

14.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F180B	#FFFFFF	#000000	##FFFFFF
##4F180B	1.00	14.31	1.47	14.31
#FFFFFF	14.31	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282309

Deuteranopia (green-blind)

#352F09

Tritanopia (blue-blind)

#580915

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #4f180b;
/* rgb */ color: rgb(79, 24, 11);
/* oklch */ color: oklch(29.6% 0.086 34.6);

Tailwind

colors: {
  custom: {
    50: '#86584b',
    500: '#4f180b',
    950: '#000000',
  },
}

SCSS

$custom: #4f180b;
$custom-light: #86584b;
$custom-dark: #000000;

JSON

{
  "hex": "#4f180b",
  "rgb": {
    "r": 79,
    "g": 24,
    "b": 11
  },
  "hsl": {
    "h": 11.471,
    "s": 75.556,
    "l": 17.647
  },
  "oklch": {
    "l": 0.29556,
    "c": 0.08592,
    "h": 34.6
  },
  "luminance": 0.0234
}

Semantic roles & 50–950 ramp

primary

#4F180B

secondary

#2B798B

accent

#CEF236

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #4F180B

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

Preview Lab → · Contrast checker → · Palette generator →