#AD3521#AD3521

#AD3521 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.5% C 0.160 H 32.0°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX#AD3521
RGBrgb(173, 53, 33)
HSLhsl(9, 68%, 40%)
HSVhsv(9, 81%, 68%)
CMYKcmyk(0%, 69.4%, 80.9%, 32.2%)
CIE-LABlab(40.48, 47.79, 39.22)
CIE-LCHlch(40.48, 61.82, 39.38°)
OKLaboklab(50.52% 0.1353 0.0846)
OKLCHoklch(50.52% 0.16 32)
XYZxyz(18.7834, 11.5431, 2.6775)
Luminance0.1154 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#AD3521 #2199AD
analogous
#AD2153 #AD3521 #AD7B21
triadic
#AD3521 #21AD35 #3521AD
tetradic
#AD3521 #53AD21 #2199AD #7B21AD
square
#AD3521 #53AD21 #2199AD #7B21AD
split-complementary
#AD3521 #21AD7B #2153AD
monochromatic
#46160D #7A2517 #AD3521 #D84B33 #E27866

Accessibility & contrast

On white

6.35
#AD3521 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.31
#AD3521 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3521
6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##AD3521#FFFFFF#000000##FFFFFF
##AD35211.006.353.316.35
#FFFFFF6.351.0021.001.00
#0000003.3121.001.0021.00
##FFFFFF6.351.0021.001.00

Color blindness preview

Protanopia (red-blind)
#584F1E
Deuteranopia (green-blind)
#76691C
Tritanopia (blue-blind)
#BF0931
Achromatopsia (no color)
#5F5F5F

Design tokens & code

CSS
--color: #ad3521;
/* rgb */ color: rgb(173, 53, 33);
/* oklch */ color: oklch(50.5% 0.160 32.0);
Tailwind
colors: {
  custom: {
    50: '#ce735e',
    500: '#ad3521',
    950: '#000000',
  },
}
SCSS
$custom: #ad3521;
$custom-light: #ce735e;
$custom-dark: #000000;
JSON
{
  "hex": "#ad3521",
  "rgb": {
    "r": 173,
    "g": 53,
    "b": 33
  },
  "hsl": {
    "h": 8.571,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50516,
    "c": 0.15958,
    "h": 32
  },
  "luminance": 0.1154
}

Semantic roles & 50–950 ramp

primary
#AD3521
secondary
#62B9C7
accent
#D2EB3D
background
#FDF7F5
surface
#FBEDE9
border
#D4C8C5
text
#150904
muted
#837B79

Preview Lab

Preview with #AD3521

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

Preview Lab → · Contrast checker → · Palette generator →

#AD3521 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva