#B43B24#B43B24

#B43B24 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.4% C 0.161 H 32.9°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#B43B24
RGB	rgb(180, 59, 36)
HSL	hsl(10, 67%, 42%)
HSV	hsv(10, 80%, 71%)
CMYK	cmyk(0%, 67.2%, 80%, 29.4%)
CIE-LAB	lab(42.71, 47.82, 40.28)
CIE-LCH	lch(42.71, 62.52, 40.11°)
OKLab	oklab(52.43% 0.1352 0.0873)
OKLCH	oklch(52.43% 0.161 32.9)
XYZ	xyz(20.7072, 12.9617, 3.0802)
Luminance	0.1296 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43B24 #249DB4

analogous

#B42455 #B43B24 #B48324

triadic

#B43B24 #24B43B #3B24B4

tetradic

#B43B24 #55B424 #249DB4 #8324B4

square

#B43B24 #55B424 #249DB4 #8324B4

split-complementary

#B43B24 #24B483 #2455B4

monochromatic

#4E1A10 #812A1A #B43B24 #D8563D #E28270

Accessibility & contrast

On white

5.85

#B43B24 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B43B24 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43B24

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43B24	#FFFFFF	#000000	##FFFFFF
##B43B24	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5420

Deuteranopia (green-blind)

#7C6F1F

Tritanopia (blue-blind)

#C61537

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43b24;
/* rgb */ color: rgb(180, 59, 36);
/* oklch */ color: oklch(52.4% 0.161 32.9);

Tailwind

colors: {
  custom: {
    50: '#d37761',
    500: '#b43b24',
    950: '#000000',
  },
}

SCSS

$custom: #b43b24;
$custom-light: #d37761;
$custom-dark: #000000;

JSON

{
  "hex": "#b43b24",
  "rgb": {
    "r": 180,
    "g": 59,
    "b": 36
  },
  "hsl": {
    "h": 9.583,
    "s": 66.667,
    "l": 42.353
  },
  "oklch": {
    "l": 0.52432,
    "c": 0.16095,
    "h": 32.9
  },
  "luminance": 0.12959
}

Semantic roles & 50–950 ramp

primary

#B43B24

secondary

#6BBAC9

accent

#CEEA3E

background

#FEF7F5

surface

#FCEEEA

border

#D5C9C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B43B24

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

Preview Lab → · Contrast checker → · Palette generator →