#AD2428#AD2428

#AD2428 is a mid, vivid red. Relative luminance 0.103; OKLCH L 49.0% C 0.173 H 25.2°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX#AD2428
RGBrgb(173, 36, 40)
HSLhsl(358, 66%, 41%)
HSVhsv(358, 79%, 68%)
CMYKcmyk(0%, 79.2%, 76.9%, 32.2%)
CIE-LABlab(38.38, 54.06, 33.12)
CIE-LCHlch(38.38, 63.40, 31.49°)
OKLaboklab(48.97% 0.1564 0.0735)
OKLCHoklch(48.97% 0.173 25.2)
XYZxyz(18.2496, 10.3021, 3.0347)
Luminance0.1030 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#AD2428 #24ADA9
analogous
#AD246C #AD2428 #AD6424
triadic
#AD2428 #28AD24 #2428AD
tetradic
#AD2428 #6CAD24 #24ADA9 #6424AD
square
#AD2428 #6CAD24 #24ADA9 #6424AD
split-complementary
#AD2428 #24AD64 #246CAD
monochromatic
#480F11 #7A191C #AD2428 #D6393D #E06B6F

Accessibility & contrast

On white

6.86
#AD2428 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.06
#AD2428 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD2428
6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##AD2428#FFFFFF#000000##FFFFFF
##AD24281.006.863.066.86
#FFFFFF6.861.0021.001.00
#0000003.0621.001.0021.00
##FFFFFF6.861.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4F4727
Deuteranopia (green-blind)
#716522
Tritanopia (blue-blind)
#BF0027
Achromatopsia (no color)
#5A5A5A

Design tokens & code

CSS
--color: #ad2428;
/* rgb */ color: rgb(173, 36, 40);
/* oklch */ color: oklch(49.0% 0.173 25.2);
Tailwind
colors: {
  custom: {
    50: '#ce6c62',
    500: '#ad2428',
    950: '#000000',
  },
}
SCSS
$custom: #ad2428;
$custom-light: #ce6c62;
$custom-dark: #000000;
JSON
{
  "hex": "#ad2428",
  "rgb": {
    "r": 173,
    "g": 36,
    "b": 40
  },
  "hsl": {
    "h": 358.248,
    "s": 65.55,
    "l": 40.98
  },
  "oklch": {
    "l": 0.48971,
    "c": 0.17279,
    "h": 25.2
  },
  "luminance": 0.10299
}

Semantic roles & 50–950 ramp

primary
#AD2428
secondary
#66C6C4
accent
#E9E43F
background
#FDF6F5
surface
#FBECEA
border
#D4C7C6
text
#150805
muted
#837B79

Preview Lab

Preview with #AD2428

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

Preview Lab → · Contrast checker → · Palette generator →

#AD2428 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva