#A64731#A64731

#A64731 is a mid, vivid red. Relative luminance 0.128; OKLCH L 51.9% C 0.131 H 34.4°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX#A64731
RGBrgb(166, 71, 49)
HSLhsl(11, 54%, 42%)
HSVhsv(11, 70%, 65%)
CMYKcmyk(0%, 57.2%, 70.5%, 34.9%)
CIE-LABlab(42.52, 37.72, 32.22)
CIE-LCHlch(42.52, 49.61, 40.51°)
OKLaboklab(51.88% 0.1079 0.0739)
OKLCHoklch(51.88% 0.131 34.4)
XYZxyz(18.5353, 12.8376, 4.4070)
Luminance0.1283 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A64731 #3190A6
analogous
#A63156 #A64731 #A68231
triadic
#A64731 #31A647 #4731A6
tetradic
#A64731 #56A631 #3190A6 #8231A6
square
#A64731 #56A631 #3190A6 #8231A6
split-complementary
#A64731 #31A682 #3156A6
monochromatic
#471F15 #773323 #A64731 #CA624A #D88B7A

Accessibility & contrast

On white

5.89
#A64731 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.57
#A64731 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A64731
5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A64731#FFFFFF#000000##FFFFFF
##A647311.005.893.575.89
#FFFFFF5.891.0021.001.00
#0000003.5721.001.0021.00
##FFFFFF5.891.0021.001.00

Color blindness preview

Protanopia (red-blind)
#60572E
Deuteranopia (green-blind)
#786C2F
Tritanopia (blue-blind)
#B63342
Achromatopsia (no color)
#646464

Design tokens & code

CSS
--color: #a64731;
/* rgb */ color: rgb(166, 71, 49);
/* oklch */ color: oklch(51.9% 0.131 34.4);
Tailwind
colors: {
  custom: {
    50: '#c77d6a',
    500: '#a64731',
    950: '#000000',
  },
}
SCSS
$custom: #a64731;
$custom-light: #c77d6a;
$custom-dark: #000000;
JSON
{
  "hex": "#a64731",
  "rgb": {
    "r": 166,
    "g": 71,
    "b": 49
  },
  "hsl": {
    "h": 11.282,
    "s": 54.419,
    "l": 42.157
  },
  "oklch": {
    "l": 0.51875,
    "c": 0.13078,
    "h": 34.4
  },
  "luminance": 0.12835
}

Semantic roles & 50–950 ramp

primary
#A64731
secondary
#73B2C0
accent
#C2DE4A
background
#FDF7F6
surface
#FAEEEB
border
#D3C9C6
text
#140A06
muted
#837C7A

Preview Lab

Preview with #A64731

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

Preview Lab → · Contrast checker → · Palette generator →

#A64731 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva