#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
RGB	rgb(168, 35, 29)
HSL	hsl(3, 71%, 39%)
HSV	hsv(3, 83%, 66%)
CMYK	cmyk(0%, 79.2%, 82.7%, 34.1%)
CIE-LAB	lab(37.15, 52.48, 37.79)
CIE-LCH	lch(37.15, 64.67, 35.76°)
OKLab	oklab(47.84% 0.1497 0.0805)
OKLCH	oklch(47.84% 0.17 28.3)
XYZ	xyz(16.9733, 9.6183, 2.1250)
Luminance	0.0962 (WCAG relative)
Temperature	warm
Family	red

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
##A8231D	1.00	7.18	2.92	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

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 →