#B43B18#B43B18

#B43B18 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.3% C 0.163 H 35.9°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#B43B18
RGB	rgb(180, 59, 24)
HSL	hsl(13, 76%, 40%)
HSV	hsv(13, 87%, 71%)
CMYK	cmyk(0%, 67.2%, 86.7%, 29.4%)
CIE-LAB	lab(42.61, 47.47, 46.00)
CIE-LCH	lch(42.61, 66.10, 44.10°)
OKLab	oklab(52.33% 0.1321 0.0957)
OKLCH	oklch(52.33% 0.163 35.9)
XYZ	xyz(20.5536, 12.9003, 2.2717)
Luminance	0.1290 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43B18 #1891B4

analogous

#B41843 #B43B18 #B48918

triadic

#B43B18 #18B43B #3B18B4

tetradic

#B43B18 #43B418 #1891B4 #8918B4

square

#B43B18 #43B418 #1891B4 #8918B4

split-complementary

#B43B18 #18B489 #1843B4

monochromatic

#48180A #7E2911 #B43B18 #E25127 #E97D5D

Accessibility & contrast

On white

5.87

#B43B18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#B43B18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43B18

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43B18	#FFFFFF	#000000	##FFFFFF
##B43B18	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5311

Deuteranopia (green-blind)

#7C6F10

Tritanopia (blue-blind)

#C71235

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43b18;
/* rgb */ color: rgb(180, 59, 24);
/* oklch */ color: oklch(52.3% 0.163 35.9);

Tailwind

colors: {
  custom: {
    50: '#d47759',
    500: '#b43b18',
    950: '#000000',
  },
}

SCSS

$custom: #b43b18;
$custom-light: #d47759;
$custom-dark: #000000;

JSON

{
  "hex": "#b43b18",
  "rgb": {
    "r": 180,
    "g": 59,
    "b": 24
  },
  "hsl": {
    "h": 13.462,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.52332,
    "c": 0.16313,
    "h": 35.9
  },
  "luminance": 0.12897
}

Semantic roles & 50–950 ramp

primary

#B43B18

secondary

#5BB4CD

accent

#C8F335

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B43B18

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

Preview Lab → · Contrast checker → · Palette generator →