#A33923#A33923

#A33923 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.3% C 0.145 H 33.5°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX#A33923
RGBrgb(163, 57, 35)
HSLhsl(10, 65%, 39%)
HSVhsv(10, 79%, 64%)
CMYKcmyk(0%, 65%, 78.5%, 36.1%)
CIE-LABlab(39.30, 42.63, 36.37)
CIE-LCHlch(39.30, 56.03, 40.47°)
OKLaboklab(49.3% 0.1207 0.0799)
OKLCHoklch(49.3% 0.145 33.5)
XYZxyz(16.8726, 10.8366, 2.7930)
Luminance0.1083 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A33923 #238DA3
analogous
#A3234D #A33923 #A37923
triadic
#A33923 #23A339 #3923A3
tetradic
#A33923 #4DA323 #238DA3 #7923A3
square
#A33923 #4DA323 #238DA3 #7923A3
split-complementary
#A33923 #23A379 #234DA3
monochromatic
#3E160D #712718 #A33923 #D34C31 #DD7863

Accessibility & contrast

On white

6.63
#A33923 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.17
#A33923 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33923
6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A33923#FFFFFF#000000##FFFFFF
##A339231.006.633.176.63
#FFFFFF6.631.0021.001.00
#0000003.1721.001.0021.00
##FFFFFF6.631.0021.001.00

Color blindness preview

Protanopia (red-blind)
#574E20
Deuteranopia (green-blind)
#71651F
Tritanopia (blue-blind)
#B41C35
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #a33923;
/* rgb */ color: rgb(163, 57, 35);
/* oklch */ color: oklch(49.3% 0.145 33.5);
Tailwind
colors: {
  custom: {
    50: '#c6745f',
    500: '#a33923',
    950: '#000000',
  },
}
SCSS
$custom: #a33923;
$custom-light: #c6745f;
$custom-dark: #000000;
JSON
{
  "hex": "#a33923",
  "rgb": {
    "r": 163,
    "g": 57,
    "b": 35
  },
  "hsl": {
    "h": 10.313,
    "s": 64.646,
    "l": 38.824
  },
  "oklch": {
    "l": 0.49298,
    "c": 0.14472,
    "h": 33.5
  },
  "luminance": 0.10834
}

Semantic roles & 50–950 ramp

primary
#A33923
secondary
#5FB2C3
accent
#CBE840
background
#FDF7F5
surface
#FAEDE9
border
#D3C8C5
text
#140905
muted
#837B79

Preview Lab

Preview with #A33923

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

Preview Lab → · Contrast checker → · Palette generator →

#A33923 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva