#A53739#A53739

#A53739 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.7% C 0.145 H 23.1°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX#A53739
RGBrgb(165, 55, 57)
HSLhsl(359, 50%, 43%)
HSVhsv(359, 67%, 65%)
CMYKcmyk(0%, 66.7%, 65.5%, 35.3%)
CIE-LABlab(39.63, 45.33, 23.96)
CIE-LCHlch(39.63, 51.27, 27.86°)
OKLaboklab(49.71% 0.1334 0.0569)
OKLCHoklch(49.71% 0.145 23.1)
XYZxyz(17.6235, 11.0296, 5.0710)
Luminance0.1103 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A53739 #37A5A3
analogous
#A53770 #A53739 #A56C37
triadic
#A53739 #39A537 #3739A5
tetradic
#A53739 #70A537 #37A5A3 #6C37A5
square
#A53739 #70A537 #37A5A3 #6C37A5
split-complementary
#A53739 #37A56C #3770A5
monochromatic
#491819 #772829 #A53739 #C65355 #D58183

Accessibility & contrast

On white

6.55
#A53739 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.21
#A53739 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A53739
6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A53739#FFFFFF#000000##FFFFFF
##A537391.006.553.216.55
#FFFFFF6.551.0021.001.00
#0000003.2121.001.0021.00
##FFFFFF6.551.0021.001.00

Color blindness preview

Protanopia (red-blind)
#544E38
Deuteranopia (green-blind)
#706636
Tritanopia (blue-blind)
#B51D39
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #a53739;
/* rgb */ color: rgb(165, 55, 57);
/* oklch */ color: oklch(49.7% 0.145 23.1);
Tailwind
colors: {
  custom: {
    50: '#c6746f',
    500: '#a53739',
    950: '#000000',
  },
}
SCSS
$custom: #a53739;
$custom-light: #c6746f;
$custom-dark: #000000;
JSON
{
  "hex": "#a53739",
  "rgb": {
    "r": 165,
    "g": 55,
    "b": 57
  },
  "hsl": {
    "h": 358.909,
    "s": 50,
    "l": 43.137
  },
  "oklch": {
    "l": 0.49705,
    "c": 0.14504,
    "h": 23.1
  },
  "luminance": 0.11027
}

Semantic roles & 50–950 ramp

primary
#A53739
secondary
#79BFBD
accent
#DAD74E
background
#FDF7F6
surface
#FAEDEC
border
#D3C8C7
text
#140907
muted
#837B7A

Preview Lab

Preview with #A53739

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

Preview Lab → · Contrast checker → · Palette generator →

#A53739 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva