#B43B1A#B43B1A

#B43B1A is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.3% C 0.163 H 35.5°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#B43B1A
RGB	rgb(180, 59, 26)
HSL	hsl(13, 75%, 40%)
HSV	hsv(13, 86%, 71%)
CMYK	cmyk(0%, 67.2%, 85.6%, 29.4%)
CIE-LAB	lab(42.63, 47.52, 45.12)
CIE-LCH	lch(42.63, 65.53, 43.51°)
OKLab	oklab(52.35% 0.1326 0.0945)
OKLCH	oklch(52.35% 0.163 35.5)
XYZ	xyz(20.5752, 12.9089, 2.3854)
Luminance	0.1291 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43B1A #1A93B4

analogous

#B41A46 #B43B1A #B4881A

triadic

#B43B1A #1AB43B #3B1AB4

tetradic

#B43B1A #46B41A #1A93B4 #881AB4

square

#B43B1A #46B41A #1A93B4 #881AB4

split-complementary

#B43B1A #1AB488 #1A46B4

monochromatic

#49180B #7F2912 #B43B1A #E0522B #E87D60

Accessibility & contrast

On white

5.86

#B43B1A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#B43B1A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43B1A

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43B1A	#FFFFFF	#000000	##FFFFFF
##B43B1A	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5414

Deuteranopia (green-blind)

#7C6F13

Tritanopia (blue-blind)

#C61335

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43b1a;
/* rgb */ color: rgb(180, 59, 26);
/* oklch */ color: oklch(52.3% 0.163 35.5);

Tailwind

colors: {
  custom: {
    50: '#d4775a',
    500: '#b43b1a',
    950: '#000000',
  },
}

SCSS

$custom: #b43b1a;
$custom-light: #d4775a;
$custom-dark: #000000;

JSON

{
  "hex": "#b43b1a",
  "rgb": {
    "r": 180,
    "g": 59,
    "b": 26
  },
  "hsl": {
    "h": 12.857,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.52346,
    "c": 0.16279,
    "h": 35.5
  },
  "luminance": 0.12906
}

Semantic roles & 50–950 ramp

primary

#B43B1A

secondary

#5DB5CC

accent

#C9F136

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B43B1A

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

Preview Lab → · Contrast checker → · Palette generator →