#B63736#B63736

#B63736 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.5% C 0.164 H 25.2°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#B63736
RGB	rgb(182, 55, 54)
HSL	hsl(0, 54%, 46%)
HSV	hsv(0, 70%, 71%)
CMYK	cmyk(0%, 69.8%, 70.3%, 28.6%)
CIE-LAB	lab(42.68, 50.88, 30.21)
CIE-LCH	lch(42.68, 59.17, 30.70°)
OKLab	oklab(52.55% 0.1482 0.0696)
OKLCH	oklch(52.55% 0.164 25.2)
XYZ	xyz(21.3258, 12.9469, 4.8654)
Luminance	0.1294 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63736 #36B5B6

analogous

#B63675 #B63736 #B67736

triadic

#B63736 #36B637 #3736B6

tetradic

#B63736 #75B636 #36B5B6 #7736B6

square

#B63736 #75B636 #36B5B6 #7736B6

split-complementary

#B63736 #36B677 #3675B6

monochromatic

#581A1A #872928 #B63736 #CE5C5B #DC8B8A

Accessibility & contrast

On white

5.85

#B63736 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B63736 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63736

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63736	#FFFFFF	#000000	##FFFFFF
##B63736	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)

#5B5335

Deuteranopia (green-blind)

#7A6F32

Tritanopia (blue-blind)

#C80E38

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b63736;
/* rgb */ color: rgb(182, 55, 54);
/* oklch */ color: oklch(52.5% 0.164 25.2);

Tailwind

colors: {
  custom: {
    50: '#d4766d',
    500: '#b63736',
    950: '#000000',
  },
}

SCSS

$custom: #b63736;
$custom-light: #d4766d;
$custom-dark: #000000;

JSON

{
  "hex": "#b63736",
  "rgb": {
    "r": 182,
    "g": 55,
    "b": 54
  },
  "hsl": {
    "h": 0.469,
    "s": 54.237,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52549,
    "c": 0.16378,
    "h": 25.2
  },
  "luminance": 0.12944
}

Semantic roles & 50–950 ramp

primary

#B63736

secondary

#81C6C6

accent

#DCDE4A

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B63736

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

Preview Lab → · Contrast checker → · Palette generator →