#B43636#B43636

#B43636 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.1% C 0.163 H 24.8°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#B43636
RGB	rgb(180, 54, 54)
HSL	hsl(0, 54%, 46%)
HSV	hsv(0, 70%, 71%)
CMYK	cmyk(0%, 70%, 70%, 29.4%)
CIE-LAB	lab(42.17, 50.62, 29.51)
CIE-LCH	lch(42.17, 58.59, 30.24°)
OKLab	oklab(52.1% 0.1477 0.0682)
OKLCH	oklch(52.1% 0.163 24.8)
XYZ	xyz(20.8097, 12.6110, 4.8277)
Luminance	0.1261 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43636 #36B4B4

analogous

#B43675 #B43636 #B47536

triadic

#B43636 #36B436 #3636B4

tetradic

#B43636 #75B436 #36B4B4 #7536B4

square

#B43636 #75B436 #36B4B4 #7536B4

split-complementary

#B43636 #36B475 #3675B4

monochromatic

#561A1A #852828 #B43636 #CD5A5A #DC8989

Accessibility & contrast

On white

5.96

#B43636 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B43636 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43636

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43636	#FFFFFF	#000000	##FFFFFF
##B43636	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595235

Deuteranopia (green-blind)

#796D32

Tritanopia (blue-blind)

#C60D38

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b43636;
/* rgb */ color: rgb(180, 54, 54);
/* oklch */ color: oklch(52.1% 0.163 24.8);

Tailwind

colors: {
  custom: {
    50: '#d2756d',
    500: '#b43636',
    950: '#000000',
  },
}

SCSS

$custom: #b43636;
$custom-light: #d2756d;
$custom-dark: #000000;

JSON

{
  "hex": "#b43636",
  "rgb": {
    "r": 180,
    "g": 54,
    "b": 54
  },
  "hsl": {
    "h": 0,
    "s": 53.846,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52099,
    "c": 0.16264,
    "h": 24.8
  },
  "luminance": 0.12608
}

Semantic roles & 50–950 ramp

primary

#B43636

secondary

#80C6C6

accent

#DDDD4B

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B43636

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

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