#B73633#B73633

#B73633 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.6% C 0.166 H 26.1°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#B73633
RGB	rgb(183, 54, 51)
HSL	hsl(1, 56%, 46%)
HSV	hsv(1, 72%, 72%)
CMYK	cmyk(0%, 70.5%, 72.1%, 28.2%)
CIE-LAB	lab(42.68, 51.45, 32.03)
CIE-LCH	lch(42.68, 60.61, 31.90°)
OKLab	oklab(52.57% 0.1493 0.073)
OKLCH	oklch(52.57% 0.166 26.1)
XYZ	xyz(21.4475, 12.9478, 4.5012)
Luminance	0.1295 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73633 #33B4B7

analogous

#B73372 #B73633 #B77833

triadic

#B73633 #33B736 #3633B7

tetradic

#B73633 #72B733 #33B4B7 #7833B7

square

#B73633 #72B733 #33B4B7 #7833B7

split-complementary

#B73633 #33B778 #3372B7

monochromatic

#571A18 #872826 #B73633 #D05A57 #DE8987

Accessibility & contrast

On white

5.85

#B73633 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B73633 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73633

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73633	#FFFFFF	#000000	##FFFFFF
##B73633	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)

#5B5331

Deuteranopia (green-blind)

#7B6F2F

Tritanopia (blue-blind)

#C90737

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b73633;
/* rgb */ color: rgb(183, 54, 51);
/* oklch */ color: oklch(52.6% 0.166 26.1);

Tailwind

colors: {
  custom: {
    50: '#d5766b',
    500: '#b73633',
    950: '#000000',
  },
}

SCSS

$custom: #b73633;
$custom-light: #d5766b;
$custom-dark: #000000;

JSON

{
  "hex": "#b73633",
  "rgb": {
    "r": 183,
    "g": 54,
    "b": 51
  },
  "hsl": {
    "h": 1.364,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52571,
    "c": 0.16619,
    "h": 26.1
  },
  "luminance": 0.12945
}

Semantic roles & 50–950 ramp

primary

#B73633

secondary

#7FC6C7

accent

#DCE048

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73633

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

Preview Lab → · Contrast checker → · Palette generator →