#AC3720#AC3720

#AC3720 is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.6% C 0.157 H 33.1°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX#AC3720
RGBrgb(172, 55, 32)
HSLhsl(10, 69%, 40%)
HSVhsv(10, 81%, 67%)
CMYKcmyk(0%, 68%, 81.4%, 32.5%)
CIE-LABlab(40.59, 46.59, 39.79)
CIE-LCHlch(40.59, 61.26, 40.50°)
OKLaboklab(50.56% 0.1315 0.0856)
OKLCHoklch(50.56% 0.157 33.1)
XYZxyz(18.6423, 11.6101, 2.6256)
Luminance0.1161 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#AC3720 #2095AC
analogous
#AC204F #AC3720 #AC7D20
triadic
#AC3720 #20AC37 #3720AC
tetradic
#AC3720 #4FAC20 #2095AC #7D20AC
square
#AC3720 #4FAC20 #2095AC #7D20AC
split-complementary
#AC3720 #20AC7D #204FAC
monochromatic
#45160D #782616 #AC3720 #D94C31 #E27964

Accessibility & contrast

On white

6.32
#AC3720 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.32
#AC3720 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3720
6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##AC3720#FFFFFF#000000##FFFFFF
##AC37201.006.323.326.32
#FFFFFF6.321.0021.001.00
#0000003.3221.001.0021.00
##FFFFFF6.321.0021.001.00

Color blindness preview

Protanopia (red-blind)
#594F1C
Deuteranopia (green-blind)
#76691B
Tritanopia (blue-blind)
#BE1033
Achromatopsia (no color)
#606060

Design tokens & code

CSS
--color: #ac3720;
/* rgb */ color: rgb(172, 55, 32);
/* oklch */ color: oklch(50.6% 0.157 33.1);
Tailwind
colors: {
  custom: {
    50: '#cd745d',
    500: '#ac3720',
    950: '#000000',
  },
}
SCSS
$custom: #ac3720;
$custom-light: #cd745d;
$custom-dark: #000000;
JSON
{
  "hex": "#ac3720",
  "rgb": {
    "r": 172,
    "g": 55,
    "b": 32
  },
  "hsl": {
    "h": 9.857,
    "s": 68.627,
    "l": 40
  },
  "oklch": {
    "l": 0.50561,
    "c": 0.15689,
    "h": 33.1
  },
  "luminance": 0.11607
}

Semantic roles & 50–950 ramp

primary
#AC3720
secondary
#60B6C7
accent
#CFEB3C
background
#FDF7F5
surface
#FBEDE9
border
#D4C8C5
text
#150904
muted
#837B79

Preview Lab

Preview with #AC3720

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

Preview Lab → · Contrast checker → · Palette generator →

#AC3720 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva