#A33A23#A33A23

#A33A23 is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.4% C 0.144 H 33.9°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX#A33A23
RGBrgb(163, 58, 35)
HSLhsl(11, 65%, 39%)
HSVhsv(11, 79%, 64%)
CMYKcmyk(0%, 64.4%, 78.5%, 36.1%)
CIE-LABlab(39.47, 42.18, 36.54)
CIE-LCHlch(39.47, 55.80, 40.91°)
OKLaboklab(49.43% 0.1193 0.0802)
OKLCHoklch(49.43% 0.144 33.9)
XYZxyz(16.9225, 10.9364, 2.8096)
Luminance0.1093 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A33A23 #238CA3
analogous
#A3234C #A33A23 #A37A23
triadic
#A33A23 #23A33A #3A23A3
tetradic
#A33A23 #4CA323 #238CA3 #7A23A3
square
#A33A23 #4CA323 #238CA3 #7A23A3
split-complementary
#A33A23 #23A37A #234CA3
monochromatic
#3E160D #712818 #A33A23 #D34E31 #DD7963

Accessibility & contrast

On white

6.59
#A33A23 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.19
#A33A23 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33A23
6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A33A23#FFFFFF#000000##FFFFFF
##A33A231.006.593.196.59
#FFFFFF6.591.0021.001.00
#0000003.1921.001.0021.00
##FFFFFF6.591.0021.001.00

Color blindness preview

Protanopia (red-blind)
#584E20
Deuteranopia (green-blind)
#72661F
Tritanopia (blue-blind)
#B31E35
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #a33a23;
/* rgb */ color: rgb(163, 58, 35);
/* oklch */ color: oklch(49.4% 0.144 33.9);
Tailwind
colors: {
  custom: {
    50: '#c6755f',
    500: '#a33a23',
    950: '#000000',
  },
}
SCSS
$custom: #a33a23;
$custom-light: #c6755f;
$custom-dark: #000000;
JSON
{
  "hex": "#a33a23",
  "rgb": {
    "r": 163,
    "g": 58,
    "b": 35
  },
  "hsl": {
    "h": 10.781,
    "s": 64.646,
    "l": 38.824
  },
  "oklch": {
    "l": 0.49425,
    "c": 0.14377,
    "h": 33.9
  },
  "luminance": 0.10934
}

Semantic roles & 50–950 ramp

primary
#A33A23
secondary
#5FB1C3
accent
#CAE840
background
#FDF7F5
surface
#FAEDE9
border
#D3C8C5
text
#140905
muted
#837B79

Preview Lab

Preview with #A33A23

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

Preview Lab → · Contrast checker → · Palette generator →

#A33A23 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva