#B73725#B73725

#B73725 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.5% C 0.168 H 31.1°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#B73725
RGB	rgb(183, 55, 37)
HSL	hsl(7, 66%, 43%)
HSV	hsv(7, 80%, 72%)
CMYK	cmyk(0%, 69.9%, 79.8%, 28.2%)
CIE-LAB	lab(42.67, 50.50, 39.89)
CIE-LCH	lch(42.67, 64.35, 38.31°)
OKLab	oklab(52.51% 0.1434 0.0865)
OKLCH	oklch(52.51% 0.168 31.1)
XYZ	xyz(21.2310, 12.9365, 3.1290)
Luminance	0.1293 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73725 #25A5B7

analogous

#B7255C #B73725 #B78025

triadic

#B73725 #25B737 #3725B7

tetradic

#B73725 #5CB725 #25A5B7 #8025B7

square

#B73725 #5CB725 #25A5B7 #8025B7

split-complementary

#B73725 #25B780 #255CB7

monochromatic

#511810 #84281B #B73725 #D95341 #E38174

Accessibility & contrast

On white

5.86

#B73725 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B73725 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73725

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73725	#FFFFFF	#000000	##FFFFFF
##B73725	1.00	5.86	3.59	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5322

Deuteranopia (green-blind)

#7C6F1F

Tritanopia (blue-blind)

#CA0434

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b73725;
/* rgb */ color: rgb(183, 55, 37);
/* oklch */ color: oklch(52.5% 0.168 31.1);

Tailwind

colors: {
  custom: {
    50: '#d57661',
    500: '#b73725',
    950: '#000000',
  },
}

SCSS

$custom: #b73725;
$custom-light: #d57661;
$custom-dark: #000000;

JSON

{
  "hex": "#b73725",
  "rgb": {
    "r": 183,
    "g": 55,
    "b": 37
  },
  "hsl": {
    "h": 7.397,
    "s": 66.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.52507,
    "c": 0.16751,
    "h": 31.1
  },
  "luminance": 0.12933
}

Semantic roles & 50–950 ramp

primary

#B73725

secondary

#6EBFCA

accent

#D4E93F

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B73725

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

Preview Lab → · Contrast checker → · Palette generator →