#A43A21#A43A21

#A43A21 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.6% C 0.145 H 34.5°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX#A43A21
RGBrgb(164, 58, 33)
HSLhsl(11, 66%, 39%)
HSVhsv(11, 80%, 64%)
CMYKcmyk(0%, 64.6%, 79.9%, 35.7%)
CIE-LABlab(39.63, 42.47, 37.83)
CIE-LCHlch(39.63, 56.87, 41.70°)
OKLaboklab(49.57% 0.1197 0.0824)
OKLCHoklch(49.57% 0.145 34.5)
XYZxyz(17.0993, 11.0309, 2.6673)
Luminance0.1103 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A43A21 #218BA4
analogous
#A4214A #A43A21 #A47B21
triadic
#A43A21 #21A43A #3A21A4
tetradic
#A43A21 #4AA421 #218BA4 #7B21A4
square
#A43A21 #4AA421 #218BA4 #7B21A4
split-complementary
#A43A21 #21A47B #214AA4
monochromatic
#3E160C #712817 #A43A21 #D54D2D #DF7960

Accessibility & contrast

On white

6.55
#A43A21 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.21
#A43A21 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A43A21
6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A43A21#FFFFFF#000000##FFFFFF
##A43A211.006.553.216.55
#FFFFFF6.551.0021.001.00
#0000003.2121.001.0021.00
##FFFFFF6.551.0021.001.00

Color blindness preview

Protanopia (red-blind)
#584F1D
Deuteranopia (green-blind)
#72661D
Tritanopia (blue-blind)
#B51D35
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #a43a21;
/* rgb */ color: rgb(164, 58, 33);
/* oklch */ color: oklch(49.6% 0.145 34.5);
Tailwind
colors: {
  custom: {
    50: '#c7755e',
    500: '#a43a21',
    950: '#000000',
  },
}
SCSS
$custom: #a43a21;
$custom-light: #c7755e;
$custom-dark: #000000;
JSON
{
  "hex": "#a43a21",
  "rgb": {
    "r": 164,
    "g": 58,
    "b": 33
  },
  "hsl": {
    "h": 11.45,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.49573,
    "c": 0.1453,
    "h": 34.5
  },
  "luminance": 0.11028
}

Semantic roles & 50–950 ramp

primary
#A43A21
secondary
#5DB0C4
accent
#C9E93E
background
#FDF7F5
surface
#FAEDE9
border
#D3C8C5
text
#150904
muted
#837B79

Preview Lab

Preview with #A43A21

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

Preview Lab → · Contrast checker → · Palette generator →

#A43A21 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva