#B43B2B#B43B2B

#B43B2B is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.160 H 30.6°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#B43B2B
RGB	rgb(180, 59, 43)
HSL	hsl(7, 61%, 44%)
HSV	hsv(7, 76%, 71%)
CMYK	cmyk(0%, 67.2%, 76.1%, 29.4%)
CIE-LAB	lab(42.78, 48.08, 36.56)
CIE-LCH	lch(42.78, 60.40, 37.25°)
OKLab	oklab(52.51% 0.1374 0.0813)
OKLCH	oklch(52.51% 0.16 30.6)
XYZ	xyz(20.8247, 13.0087, 3.6994)
Luminance	0.1301 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43B2B #2BA4B4

analogous

#B42B5F #B43B2B #B47F2B

triadic

#B43B2B #2BB43B #3B2BB4

tetradic

#B43B2B #5FB42B #2BA4B4 #7F2BB4

square

#B43B2B #5FB42B #2BA4B4 #7F2BB4

split-complementary

#B43B2B #2BB47F #2B5FB4

monochromatic

#511B13 #832B1F #B43B2B #D35949 #DF867A

Accessibility & contrast

On white

5.83

#B43B2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#B43B2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43B2B

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43B2B	#FFFFFF	#000000	##FFFFFF
##B43B2B	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)

#5D5428

Deuteranopia (green-blind)

#7B6F27

Tritanopia (blue-blind)

#C61738

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43b2b;
/* rgb */ color: rgb(180, 59, 43);
/* oklch */ color: oklch(52.5% 0.160 30.6);

Tailwind

colors: {
  custom: {
    50: '#d37865',
    500: '#b43b2b',
    950: '#000000',
  },
}

SCSS

$custom: #b43b2b;
$custom-light: #d37865;
$custom-dark: #000000;

JSON

{
  "hex": "#b43b2b",
  "rgb": {
    "r": 180,
    "g": 59,
    "b": 43
  },
  "hsl": {
    "h": 7.007,
    "s": 61.435,
    "l": 43.725
  },
  "oklch": {
    "l": 0.52507,
    "c": 0.15962,
    "h": 30.6
  },
  "luminance": 0.13006
}

Semantic roles & 50–950 ramp

primary

#B43B2B

secondary

#73BEC7

accent

#D2E543

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B43B2B

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

Preview Lab → · Contrast checker → · Palette generator →