#AC3621#AC3621

#AC3621 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.5% C 0.158 H 32.4°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX#AC3621
RGBrgb(172, 54, 33)
HSLhsl(9, 68%, 40%)
HSVhsv(9, 81%, 67%)
CMYKcmyk(0%, 68.6%, 80.8%, 32.5%)
CIE-LABlab(40.45, 47.04, 39.12)
CIE-LCHlch(40.45, 61.18, 39.75°)
OKLaboklab(50.46% 0.133 0.0845)
OKLCHoklch(50.46% 0.158 32.4)
XYZxyz(18.6091, 11.5216, 2.6826)
Luminance0.1152 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#AC3621 #2197AC
analogous
#AC2151 #AC3621 #AC7C21
triadic
#AC3621 #21AC36 #3621AC
tetradic
#AC3621 #51AC21 #2197AC #7C21AC
square
#AC3621 #51AC21 #2197AC #7C21AC
split-complementary
#AC3621 #21AC7C #2151AC
monochromatic
#45160D #792617 #AC3621 #D84B32 #E27866

Accessibility & contrast

On white

6.36
#AC3621 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.30
#AC3621 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3621
6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##AC3621#FFFFFF#000000##FFFFFF
##AC36211.006.363.306.36
#FFFFFF6.361.0021.001.00
#0000003.3021.001.0021.00
##FFFFFF6.361.0021.001.00

Color blindness preview

Protanopia (red-blind)
#584F1D
Deuteranopia (green-blind)
#76691C
Tritanopia (blue-blind)
#BE0E32
Achromatopsia (no color)
#5F5F5F

Design tokens & code

CSS
--color: #ac3621;
/* rgb */ color: rgb(172, 54, 33);
/* oklch */ color: oklch(50.5% 0.158 32.4);
Tailwind
colors: {
  custom: {
    50: '#cd745e',
    500: '#ac3621',
    950: '#000000',
  },
}
SCSS
$custom: #ac3621;
$custom-light: #cd745e;
$custom-dark: #000000;
JSON
{
  "hex": "#ac3621",
  "rgb": {
    "r": 172,
    "g": 54,
    "b": 33
  },
  "hsl": {
    "h": 9.065,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.50455,
    "c": 0.15761,
    "h": 32.4
  },
  "luminance": 0.11519
}

Semantic roles & 50–950 ramp

primary
#AC3621
secondary
#62B8C7
accent
#D0EB3D
background
#FDF7F5
surface
#FBEDE9
border
#D4C8C5
text
#150904
muted
#837B79

Preview Lab

Preview with #AC3621

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

Preview Lab → · Contrast checker → · Palette generator →

#AC3621 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva