#AD3F21#AD3F21

#AD3F21 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.7% C 0.150 H 35.8°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX#AD3F21
RGBrgb(173, 63, 33)
HSLhsl(13, 68%, 40%)
HSVhsv(13, 81%, 68%)
CMYKcmyk(0%, 63.6%, 80.9%, 32.2%)
CIE-LABlab(42.08, 43.48, 40.79)
CIE-LCHlch(42.08, 59.61, 43.17°)
OKLaboklab(51.72% 0.1219 0.0881)
OKLCHoklch(51.72% 0.15 35.8)
XYZxyz(19.2877, 12.5518, 2.8457)
Luminance0.1255 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#AD3F21 #218FAD
analogous
#AD2149 #AD3F21 #AD8521
triadic
#AD3F21 #21AD3F #3F21AD
tetradic
#AD3F21 #49AD21 #218FAD #8521AD
square
#AD3F21 #49AD21 #218FAD #8521AD
split-complementary
#AD3F21 #21AD85 #2149AD
monochromatic
#461A0D #7A2C17 #AD3F21 #D85633 #E28166

Accessibility & contrast

On white

5.98
#AD3F21 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.51
#AD3F21 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3F21
5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##AD3F21#FFFFFF#000000##FFFFFF
##AD3F211.005.983.515.98
#FFFFFF5.981.0021.001.00
#0000003.5121.001.0021.00
##FFFFFF5.981.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5E541D
Deuteranopia (green-blind)
#796C1C
Tritanopia (blue-blind)
#BF2239
Achromatopsia (no color)
#636363

Design tokens & code

CSS
--color: #ad3f21;
/* rgb */ color: rgb(173, 63, 33);
/* oklch */ color: oklch(51.7% 0.150 35.8);
Tailwind
colors: {
  custom: {
    50: '#ce795f',
    500: '#ad3f21',
    950: '#000000',
  },
}
SCSS
$custom: #ad3f21;
$custom-light: #ce795f;
$custom-dark: #000000;
JSON
{
  "hex": "#ad3f21",
  "rgb": {
    "r": 173,
    "g": 63,
    "b": 33
  },
  "hsl": {
    "h": 12.857,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.51718,
    "c": 0.15041,
    "h": 35.8
  },
  "luminance": 0.12549
}

Semantic roles & 50–950 ramp

primary
#AD3F21
secondary
#62B2C7
accent
#C6EB3D
background
#FDF7F5
surface
#FBEEE9
border
#D4C9C5
text
#150904
muted
#837B79

Preview Lab

Preview with #AD3F21

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

Preview Lab → · Contrast checker → · Palette generator →

#AD3F21 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva