#A33A33#A33A33

#A33A33 is a mid, vivid red. Relative luminance 0.111; OKLCH L 49.6% C 0.140 H 27.2°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX#A33A33
RGBrgb(163, 58, 51)
HSLhsl(4, 52%, 42%)
HSVhsv(4, 69%, 64%)
CMYKcmyk(0%, 64.4%, 68.7%, 36.1%)
CIE-LABlab(39.67, 42.94, 27.57)
CIE-LCHlch(39.67, 51.03, 32.70°)
OKLaboklab(49.64% 0.1249 0.0642)
OKLCHoklch(49.64% 0.14 27.2)
XYZxyz(17.2166, 11.0540, 4.3584)
Luminance0.1105 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A33A33 #339CA3
analogous
#A33364 #A33A33 #A37233
triadic
#A33A33 #33A33A #3A33A3
tetradic
#A33A33 #64A333 #339CA3 #7233A3
square
#A33A33 #64A333 #339CA3 #7233A3
split-complementary
#A33A33 #33A372 #3364A3
monochromatic
#461916 #742924 #A33A33 #C7544C #D6807B

Accessibility & contrast

On white

6.54
#A33A33 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.21
#A33A33 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33A33
6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A33A33#FFFFFF#000000##FFFFFF
##A33A331.006.543.216.54
#FFFFFF6.541.0021.001.00
#0000003.2121.001.0021.00
##FFFFFF6.541.0021.001.00

Color blindness preview

Protanopia (red-blind)
#564F32
Deuteranopia (green-blind)
#706630
Tritanopia (blue-blind)
#B32139
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #a33a33;
/* rgb */ color: rgb(163, 58, 51);
/* oklch */ color: oklch(49.6% 0.140 27.2);
Tailwind
colors: {
  custom: {
    50: '#c5756b',
    500: '#a33a33',
    950: '#000000',
  },
}
SCSS
$custom: #a33a33;
$custom-light: #c5756b;
$custom-dark: #000000;
JSON
{
  "hex": "#a33a33",
  "rgb": {
    "r": 163,
    "g": 58,
    "b": 51
  },
  "hsl": {
    "h": 3.75,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.49638,
    "c": 0.14044,
    "h": 27.2
  },
  "luminance": 0.11052
}

Semantic roles & 50–950 ramp

primary
#A33A33
secondary
#73BABE
accent
#D3DC4C
background
#FDF7F6
surface
#FAEDEB
border
#D3C8C6
text
#140906
muted
#837B7A

Preview Lab

Preview with #A33A33

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

Preview Lab → · Contrast checker → · Palette generator →

#A33A33 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva