#A8231D#A8231D

#A8231D is a mid, vivid red. Relative luminance 0.096; OKLCH L 47.8% C 0.170 H 28.3°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX#A8231D
RGBrgb(168, 35, 29)
HSLhsl(3, 71%, 39%)
HSVhsv(3, 83%, 66%)
CMYKcmyk(0%, 79.2%, 82.7%, 34.1%)
CIE-LABlab(37.15, 52.48, 37.79)
CIE-LCHlch(37.15, 64.67, 35.76°)
OKLaboklab(47.84% 0.1497 0.0805)
OKLCHoklch(47.84% 0.17 28.3)
XYZxyz(16.9733, 9.6183, 2.1250)
Luminance0.0962 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A8231D #1DA2A8
analogous
#A81D5C #A8231D #A8681D
triadic
#A8231D #1DA823 #231DA8
tetradic
#A8231D #5CA81D #1DA2A8 #681DA8
square
#A8231D #5CA81D #1DA2A8 #681DA8
split-complementary
#A8231D #1DA868 #1D5CA8
monochromatic
#400D0B #741814 #A8231D #DA3028 #E3625C

Accessibility & contrast

On white

7.18
#A8231D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.92
#A8231D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A8231D
7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A8231D#FFFFFF#000000##FFFFFF
##A8231D1.007.182.927.18
#FFFFFF7.181.0021.001.00
#0000002.9221.001.0021.00
##FFFFFF7.181.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4D451A
Deuteranopia (green-blind)
#6E6216
Tritanopia (blue-blind)
#BA0023
Achromatopsia (no color)
#575757

Design tokens & code

CSS
--color: #a8231d;
/* rgb */ color: rgb(168, 35, 29);
/* oklch */ color: oklch(47.8% 0.170 28.3);
Tailwind
colors: {
  custom: {
    50: '#cb6b5a',
    500: '#a8231d',
    950: '#000000',
  },
}
SCSS
$custom: #a8231d;
$custom-light: #cb6b5a;
$custom-dark: #000000;
JSON
{
  "hex": "#a8231d",
  "rgb": {
    "r": 168,
    "g": 35,
    "b": 29
  },
  "hsl": {
    "h": 2.59,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47841,
    "c": 0.16998,
    "h": 28.3
  },
  "luminance": 0.09616
}

Semantic roles & 50–950 ramp

primary
#A8231D
secondary
#5AC2C7
accent
#E6ED3A
background
#FDF6F5
surface
#FBECE9
border
#D4C7C5
text
#150704
muted
#837A79

Preview Lab

Preview with #A8231D

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

Preview Lab → · Contrast checker → · Palette generator →

#A8231D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva