#AD3A21#AD3A21

#AD3A21 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.1% C 0.155 H 33.8°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX#AD3A21
RGBrgb(173, 58, 33)
HSLhsl(11, 68%, 40%)
HSVhsv(11, 81%, 68%)
CMYKcmyk(0%, 66.5%, 80.9%, 32.2%)
CIE-LABlab(41.25, 45.69, 39.98)
CIE-LCHlch(41.25, 60.71, 41.18°)
OKLaboklab(51.1% 0.1288 0.0863)
OKLCHoklch(51.1% 0.155 33.8)
XYZxyz(19.0233, 12.0230, 2.7575)
Luminance0.1202 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#AD3A21 #2194AD
analogous
#AD214E #AD3A21 #AD8021
triadic
#AD3A21 #21AD3A #3A21AD
tetradic
#AD3A21 #4EAD21 #2194AD #8021AD
square
#AD3A21 #4EAD21 #2194AD #8021AD
split-complementary
#AD3A21 #21AD80 #214EAD
monochromatic
#46180D #7A2917 #AD3A21 #D85133 #E27D66

Accessibility & contrast

On white

6.17
#AD3A21 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.40
#AD3A21 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3A21
6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##AD3A21#FFFFFF#000000##FFFFFF
##AD3A211.006.173.406.17
#FFFFFF6.171.0021.001.00
#0000003.4021.001.0021.00
##FFFFFF6.171.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5B511D
Deuteranopia (green-blind)
#786B1C
Tritanopia (blue-blind)
#BF1835
Achromatopsia (no color)
#616161

Design tokens & code

CSS
--color: #ad3a21;
/* rgb */ color: rgb(173, 58, 33);
/* oklch */ color: oklch(51.1% 0.155 33.8);
Tailwind
colors: {
  custom: {
    50: '#ce765e',
    500: '#ad3a21',
    950: '#000000',
  },
}
SCSS
$custom: #ad3a21;
$custom-light: #ce765e;
$custom-dark: #000000;
JSON
{
  "hex": "#ad3a21",
  "rgb": {
    "r": 173,
    "g": 58,
    "b": 33
  },
  "hsl": {
    "h": 10.714,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.51095,
    "c": 0.15502,
    "h": 33.8
  },
  "luminance": 0.1202
}

Semantic roles & 50–950 ramp

primary
#AD3A21
secondary
#62B5C7
accent
#CCEB3D
background
#FDF7F5
surface
#FBEDE9
border
#D4C8C5
text
#150904
muted
#837B79

Preview Lab

Preview with #AD3A21

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

Preview Lab → · Contrast checker → · Palette generator →

#AD3A21 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva