#4B181A#4B181A

#4B181A is a dark, moderate red. Relative luminance 0.022; OKLCH L 29.1% C 0.078 H 21.0°. Best body text is #FFFFFF at 14.53:1 contrast (WCAG AA passes).

Color values

HEX	#4B181A
RGB	rgb(75, 24, 26)
HSL	hsl(358, 52%, 19%)
HSV	hsv(358, 68%, 29%)
CMYK	cmyk(0%, 68%, 65.3%, 70.6%)
CIE-LAB	lab(16.62, 24.38, 11.41)
CIE-LCH	lch(16.62, 26.92, 25.08°)
OKLab	oklab(29.06% 0.0724 0.0278)
OKLCH	oklch(29.06% 0.078 21)
XYZ	xyz(3.4150, 2.2241, 1.2266)
Luminance	0.0222 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B181A #184B49

analogous

#4B1834 #4B181A #4B3018

triadic

#4B181A #1A4B18 #181A4B

tetradic

#4B181A #344B18 #184B49 #30184B

square

#4B181A #344B18 #184B49 #30184B

split-complementary

#4B181A #184B30 #18344B

monochromatic

#170708 #1D090A #4B181A #79272A #A8363A

Accessibility & contrast

On white

14.53

#4B181A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#4B181A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B181A

14.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B181A	#FFFFFF	#000000	##FFFFFF
##4B181A	1.00	14.53	1.44	14.53
#FFFFFF	14.53	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25221A

Deuteranopia (green-blind)

#322D19

Tritanopia (blue-blind)

#530E19

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #4b181a;
/* rgb */ color: rgb(75, 24, 26);
/* oklch */ color: oklch(29.1% 0.078 21.0);

Tailwind

colors: {
  custom: {
    50: '#815856',
    500: '#4b181a',
    950: '#000000',
  },
}

SCSS

$custom: #4b181a;
$custom-light: #815856;
$custom-dark: #000000;

JSON

{
  "hex": "#4b181a",
  "rgb": {
    "r": 75,
    "g": 24,
    "b": 26
  },
  "hsl": {
    "h": 357.647,
    "s": 51.515,
    "l": 19.412
  },
  "oklch": {
    "l": 0.29063,
    "c": 0.07759,
    "h": 21
  },
  "luminance": 0.02224
}

Semantic roles & 50–950 ramp

primary

#4B181A

secondary

#3D827F

accent

#DBD54D

background

#F8F5F5

surface

#EFE9E9

border

#CAC5C5

text

#0B0303

muted

#7C7878

Preview Lab

Preview with #4B181A

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

Preview Lab → · Contrast checker → · Palette generator →