#B53636#B53636

#B53636 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.3% C 0.164 H 24.8°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#B53636
RGB	rgb(181, 54, 54)
HSL	hsl(0, 54%, 46%)
HSV	hsv(0, 70%, 71%)
CMYK	cmyk(0%, 70.2%, 70.2%, 29%)
CIE-LAB	lab(42.36, 50.95, 29.77)
CIE-LCH	lch(42.36, 59.01, 30.30°)
OKLab	oklab(52.27% 0.1486 0.0687)
OKLCH	oklch(52.27% 0.164 24.8)
XYZ	xyz(21.0434, 12.7315, 4.8387)
Luminance	0.1273 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53636 #36B5B5

analogous

#B53675 #B53636 #B57536

triadic

#B53636 #36B536 #3636B5

tetradic

#B53636 #75B536 #36B5B5 #7536B5

square

#B53636 #75B536 #36B5B5 #7536B5

split-complementary

#B53636 #36B575 #3675B5

monochromatic

#571A1A #862828 #B53636 #CE5A5A #DC8989

Accessibility & contrast

On white

5.92

#B53636 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B53636 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53636

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53636	#FFFFFF	#000000	##FFFFFF
##B53636	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5335

Deuteranopia (green-blind)

#7A6E32

Tritanopia (blue-blind)

#C70C38

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b53636;
/* rgb */ color: rgb(181, 54, 54);
/* oklch */ color: oklch(52.3% 0.164 24.8);

Tailwind

colors: {
  custom: {
    50: '#d3756d',
    500: '#b53636',
    950: '#000000',
  },
}

SCSS

$custom: #b53636;
$custom-light: #d3756d;
$custom-dark: #000000;

JSON

{
  "hex": "#b53636",
  "rgb": {
    "r": 181,
    "g": 54,
    "b": 54
  },
  "hsl": {
    "h": 0,
    "s": 54.043,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52271,
    "c": 0.1637,
    "h": 24.8
  },
  "luminance": 0.12728
}

Semantic roles & 50–950 ramp

primary

#B53636

secondary

#81C6C6

accent

#DDDD4A

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B53636

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

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