#A03720#A03720

#A03720 is a mid, vivid red. Relative luminance 0.103; OKLCH L 48.5% C 0.144 H 33.9°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX#A03720
RGBrgb(160, 55, 32)
HSLhsl(11, 67%, 38%)
HSVhsv(11, 80%, 63%)
CMYKcmyk(0%, 65.6%, 80%, 37.3%)
CIE-LABlab(38.40, 42.33, 36.89)
CIE-LCHlch(38.40, 56.14, 41.07°)
OKLaboklab(48.51% 0.1195 0.0803)
OKLCHoklch(48.51% 0.144 33.9)
XYZxyz(16.1259, 10.3126, 2.5076)
Luminance0.1031 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A03720 #2089A0
analogous
#A02049 #A03720 #A07720
triadic
#A03720 #20A037 #3720A0
tetradic
#A03720 #49A020 #2089A0 #7720A0
square
#A03720 #49A020 #2089A0 #7720A0
split-complementary
#A03720 #20A077 #2049A0
monochromatic
#3A140C #6D2516 #A03720 #D3492A #DE735C

Accessibility & contrast

On white

6.86
#A03720 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.06
#A03720 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A03720
6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A03720#FFFFFF#000000##FFFFFF
##A037201.006.863.066.86
#FFFFFF6.861.0021.001.00
#0000003.0621.001.0021.00
##FFFFFF6.861.0021.001.00

Color blindness preview

Protanopia (red-blind)
#554C1D
Deuteranopia (green-blind)
#6F631C
Tritanopia (blue-blind)
#B01A32
Achromatopsia (no color)
#5A5A5A

Design tokens & code

CSS
--color: #a03720;
/* rgb */ color: rgb(160, 55, 32);
/* oklch */ color: oklch(48.5% 0.144 33.9);
Tailwind
colors: {
  custom: {
    50: '#c4735d',
    500: '#a03720',
    950: '#000000',
  },
}
SCSS
$custom: #a03720;
$custom-light: #c4735d;
$custom-dark: #000000;
JSON
{
  "hex": "#a03720",
  "rgb": {
    "r": 160,
    "g": 55,
    "b": 32
  },
  "hsl": {
    "h": 10.781,
    "s": 66.667,
    "l": 37.647
  },
  "oklch": {
    "l": 0.48505,
    "c": 0.14398,
    "h": 33.9
  },
  "luminance": 0.1031
}

Semantic roles & 50–950 ramp

primary
#A03720
secondary
#59B0C3
accent
#CBEA3E
background
#FDF7F5
surface
#FAEDE9
border
#D3C8C5
text
#140804
muted
#837B79

Preview Lab

Preview with #A03720

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

Preview Lab → · Contrast checker → · Palette generator →

#A03720 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva