#A13720#A13720

#A13720 is a mid, vivid red. Relative luminance 0.104; OKLCH L 48.7% C 0.145 H 33.8°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX#A13720
RGBrgb(161, 55, 32)
HSLhsl(11, 67%, 38%)
HSVhsv(11, 80%, 63%)
CMYKcmyk(0%, 65.8%, 80.1%, 36.9%)
CIE-LABlab(38.58, 42.69, 37.13)
CIE-LCHlch(38.58, 56.58, 41.02°)
OKLaboklab(48.68% 0.1205 0.0808)
OKLCHoklch(48.68% 0.145 33.8)
XYZxyz(16.3267, 10.4161, 2.5170)
Luminance0.1041 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A13720 #208AA1
analogous
#A12049 #A13720 #A17820
triadic
#A13720 #20A137 #3720A1
tetradic
#A13720 #49A120 #208AA1 #7820A1
square
#A13720 #49A120 #208AA1 #7820A1
split-complementary
#A13720 #20A178 #2049A1
monochromatic
#3B140C #6E2616 #A13720 #D4482A #DF745D

Accessibility & contrast

On white

6.81
#A13720 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.08
#A13720 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A13720
6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A13720#FFFFFF#000000##FFFFFF
##A137201.006.813.086.81
#FFFFFF6.811.0021.001.00
#0000003.0821.001.0021.00
##FFFFFF6.811.0021.001.00

Color blindness preview

Protanopia (red-blind)
#554C1D
Deuteranopia (green-blind)
#70641C
Tritanopia (blue-blind)
#B11932
Achromatopsia (no color)
#5B5B5B

Design tokens & code

CSS
--color: #a13720;
/* rgb */ color: rgb(161, 55, 32);
/* oklch */ color: oklch(48.7% 0.145 33.8);
Tailwind
colors: {
  custom: {
    50: '#c5735d',
    500: '#a13720',
    950: '#000000',
  },
}
SCSS
$custom: #a13720;
$custom-light: #c5735d;
$custom-dark: #000000;
JSON
{
  "hex": "#a13720",
  "rgb": {
    "r": 161,
    "g": 55,
    "b": 32
  },
  "hsl": {
    "h": 10.698,
    "s": 66.839,
    "l": 37.843
  },
  "oklch": {
    "l": 0.48675,
    "c": 0.14508,
    "h": 33.8
  },
  "luminance": 0.10414
}

Semantic roles & 50–950 ramp

primary
#A13720
secondary
#5AB0C3
accent
#CBEA3E
background
#FDF7F5
surface
#FAEDE9
border
#D3C8C5
text
#140804
muted
#837B79

Preview Lab

Preview with #A13720

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

Preview Lab → · Contrast checker → · Palette generator →

#A13720 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva