#B43A2A#B43A2A

#B43A2A is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.4% C 0.161 H 30.6°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#B43A2A
RGB	rgb(180, 58, 42)
HSL	hsl(7, 62%, 44%)
HSV	hsv(7, 77%, 71%)
CMYK	cmyk(0%, 67.8%, 76.7%, 29.4%)
CIE-LAB	lab(42.61, 48.46, 36.94)
CIE-LCH	lch(42.61, 60.93, 37.32°)
OKLab	oklab(52.38% 0.1384 0.0818)
OKLCH	oklch(52.38% 0.161 30.6)
XYZ	xyz(20.7557, 12.8996, 3.5870)
Luminance	0.1290 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43A2A #2AA4B4

analogous

#B42A5F #B43A2A #B47F2A

triadic

#B43A2A #2AB43A #3A2AB4

tetradic

#B43A2A #5FB42A #2AA4B4 #7F2AB4

square

#B43A2A #5FB42A #2AA4B4 #7F2AB4

split-complementary

#B43A2A #2AB47F #2A5FB4

monochromatic

#511A13 #822A1E #B43A2A #D45747 #E08579

Accessibility & contrast

On white

5.87

#B43A2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#B43A2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43A2A

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43A2A	#FFFFFF	#000000	##FFFFFF
##B43A2A	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)

#5D5427

Deuteranopia (green-blind)

#7B6E25

Tritanopia (blue-blind)

#C61437

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43a2a;
/* rgb */ color: rgb(180, 58, 42);
/* oklch */ color: oklch(52.4% 0.161 30.6);

Tailwind

colors: {
  custom: {
    50: '#d37765',
    500: '#b43a2a',
    950: '#000000',
  },
}

SCSS

$custom: #b43a2a;
$custom-light: #d37765;
$custom-dark: #000000;

JSON

{
  "hex": "#b43a2a",
  "rgb": {
    "r": 180,
    "g": 58,
    "b": 42
  },
  "hsl": {
    "h": 6.957,
    "s": 62.162,
    "l": 43.529
  },
  "oklch": {
    "l": 0.5238,
    "c": 0.16075,
    "h": 30.6
  },
  "luminance": 0.12897
}

Semantic roles & 50–950 ramp

primary

#B43A2A

secondary

#72BEC8

accent

#D2E543

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B43A2A

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

Preview Lab → · Contrast checker → · Palette generator →