#A33723#A33723

#A33723 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.0% C 0.147 H 32.7°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX#A33723
RGBrgb(163, 55, 35)
HSLhsl(9, 65%, 39%)
HSVhsv(9, 79%, 64%)
CMYKcmyk(0%, 66.3%, 78.5%, 36.1%)
CIE-LABlab(38.97, 43.52, 36.02)
CIE-LCHlch(38.97, 56.50, 39.62°)
OKLaboklab(49.05% 0.1235 0.0791)
OKLCHoklch(49.05% 0.147 32.7)
XYZxyz(16.7757, 10.6427, 2.7607)
Luminance0.1064 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A33723 #238FA3
analogous
#A3234F #A33723 #A37723
triadic
#A33723 #23A337 #3723A3
tetradic
#A33723 #4FA323 #238FA3 #7723A3
square
#A33723 #4FA323 #238FA3 #7723A3
split-complementary
#A33723 #23A377 #234FA3
monochromatic
#3E150D #712618 #A33723 #D34A31 #DD7663

Accessibility & contrast

On white

6.71
#A33723 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.13
#A33723 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33723
6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A33723#FFFFFF#000000##FFFFFF
##A337231.006.713.136.71
#FFFFFF6.711.0021.001.00
#0000003.1321.001.0021.00
##FFFFFF6.711.0021.001.00

Color blindness preview

Protanopia (red-blind)
#564D20
Deuteranopia (green-blind)
#71651F
Tritanopia (blue-blind)
#B41833
Achromatopsia (no color)
#5C5C5C

Design tokens & code

CSS
--color: #a33723;
/* rgb */ color: rgb(163, 55, 35);
/* oklch */ color: oklch(49.0% 0.147 32.7);
Tailwind
colors: {
  custom: {
    50: '#c6735f',
    500: '#a33723',
    950: '#000000',
  },
}
SCSS
$custom: #a33723;
$custom-light: #c6735f;
$custom-dark: #000000;
JSON
{
  "hex": "#a33723",
  "rgb": {
    "r": 163,
    "g": 55,
    "b": 35
  },
  "hsl": {
    "h": 9.375,
    "s": 64.646,
    "l": 38.824
  },
  "oklch": {
    "l": 0.49048,
    "c": 0.14664,
    "h": 32.7
  },
  "luminance": 0.1064
}

Semantic roles & 50–950 ramp

primary
#A33723
secondary
#5FB3C3
accent
#CDE840
background
#FDF7F5
surface
#FAEDE9
border
#D3C8C5
text
#140805
muted
#837B79

Preview Lab

Preview with #A33723

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

Preview Lab → · Contrast checker → · Palette generator →

#A33723 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva