#B43B2A#B43B2A

#B43B2A is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.160 H 30.9°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#B43B2A
RGB	rgb(180, 59, 42)
HSL	hsl(7, 62%, 44%)
HSV	hsv(7, 77%, 71%)
CMYK	cmyk(0%, 67.2%, 76.7%, 29.4%)
CIE-LAB	lab(42.77, 48.04, 37.10)
CIE-LCH	lch(42.77, 60.70, 37.68°)
OKLab	oklab(52.5% 0.1371 0.0822)
OKLCH	oklch(52.5% 0.16 30.9)
XYZ	xyz(20.8066, 13.0015, 3.6040)
Luminance	0.1300 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43B2A #2AA3B4

analogous

#B42A5E #B43B2A #B4802A

triadic

#B43B2A #2AB43B #3B2AB4

tetradic

#B43B2A #5EB42A #2AA3B4 #802AB4

square

#B43B2A #5EB42A #2AA3B4 #802AB4

split-complementary

#B43B2A #2AB480 #2A5EB4

monochromatic

#511A13 #822B1E #B43B2A #D45847 #E08579

Accessibility & contrast

On white

5.83

#B43B2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#B43B2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43B2A

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43B2A	#FFFFFF	#000000	##FFFFFF
##B43B2A	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5427

Deuteranopia (green-blind)

#7C6F25

Tritanopia (blue-blind)

#C61738

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43b2a;
/* rgb */ color: rgb(180, 59, 42);
/* oklch */ color: oklch(52.5% 0.160 30.9);

Tailwind

colors: {
  custom: {
    50: '#d37865',
    500: '#b43b2a',
    950: '#000000',
  },
}

SCSS

$custom: #b43b2a;
$custom-light: #d37865;
$custom-dark: #000000;

JSON

{
  "hex": "#b43b2a",
  "rgb": {
    "r": 180,
    "g": 59,
    "b": 42
  },
  "hsl": {
    "h": 7.391,
    "s": 62.162,
    "l": 43.529
  },
  "oklch": {
    "l": 0.52496,
    "c": 0.15981,
    "h": 30.9
  },
  "luminance": 0.12998
}

Semantic roles & 50–950 ramp

primary

#B43B2A

secondary

#72BDC8

accent

#D1E543

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B43B2A

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

Preview Lab → · Contrast checker → · Palette generator →