#B73928#B73928

#B73928 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.8% C 0.165 H 30.8°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX#B73928
RGBrgb(183, 57, 40)
HSLhsl(7, 64%, 44%)
HSVhsv(7, 78%, 72%)
CMYKcmyk(0%, 68.9%, 78.1%, 28.2%)
CIE-LABlab(42.99, 49.81, 38.60)
CIE-LCHlch(42.99, 63.02, 37.78°)
OKLaboklab(52.76% 0.1419 0.0846)
OKLCHoklch(52.76% 0.165 30.8)
XYZxyz(21.3770, 13.1499, 3.4196)
Luminance0.1315 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B73928 #28A6B7
analogous
#B7285E #B73928 #B78028
triadic
#B73928 #28B739 #3928B7
tetradic
#B73928 #5EB728 #28A6B7 #8028B7
square
#B73928 #5EB728 #28A6B7 #8028B7
split-complementary
#B73928 #28B780 #285EB7
monochromatic
#531A12 #85291D #B73928 #D65746 #E18478

Accessibility & contrast

On white

5.79
#B73928 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.63
#B73928 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73928
5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B73928#FFFFFF#000000##FFFFFF
##B739281.005.793.635.79
#FFFFFF5.791.0021.001.00
#0000003.6321.001.0021.00
##FFFFFF5.791.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5E5425
Deuteranopia (green-blind)
#7D7023
Tritanopia (blue-blind)
#CA0D36
Achromatopsia (no color)
#656565

Design tokens & code

CSS
--color: #b73928;
/* rgb */ color: rgb(183, 57, 40);
/* oklch */ color: oklch(52.8% 0.165 30.8);
Tailwind
colors: {
  custom: {
    50: '#d57763',
    500: '#b73928',
    950: '#000000',
  },
}
SCSS
$custom: #b73928;
$custom-light: #d57763;
$custom-dark: #000000;
JSON
{
  "hex": "#b73928",
  "rgb": {
    "r": 183,
    "g": 57,
    "b": 40
  },
  "hsl": {
    "h": 7.133,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.52757,
    "c": 0.16519,
    "h": 30.8
  },
  "luminance": 0.13147
}

Semantic roles & 50–950 ramp

primary
#B73928
secondary
#72BFC9
accent
#D3E741
background
#FEF7F6
surface
#FCEDEB
border
#D5C8C6
text
#160905
muted
#847B7A

Preview Lab

Preview with #B73928

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

Preview Lab → · Contrast checker → · Palette generator →

#B73928 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva