#A63231#A63231

#A63231 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.2% C 0.152 H 25.1°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#A63231
RGB	rgb(166, 50, 49)
HSL	hsl(1, 54%, 42%)
HSV	hsv(1, 70%, 65%)
CMYK	cmyk(0%, 69.9%, 70.5%, 34.9%)
CIE-LAB	lab(38.92, 47.30, 28.00)
CIE-LCH	lch(38.92, 54.97, 30.63°)
OKLab	oklab(49.17% 0.1379 0.0647)
OKLCH	oklch(49.17% 0.152 25.1)
XYZ	xyz(17.4227, 10.6125, 4.0361)
Luminance	0.1061 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63231 #31A5A6

analogous

#A6316A #A63231 #A66D31

triadic

#A63231 #31A632 #3231A6

tetradic

#A63231 #6AA631 #31A5A6 #6D31A6

square

#A63231 #6AA631 #31A5A6 #6D31A6

split-complementary

#A63231 #31A66D #316AA6

monochromatic

#471615 #772423 #A63231 #CA4C4A #D87B7A

Accessibility & contrast

On white

6.73

#A63231 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#A63231 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63231

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63231	#FFFFFF	#000000	##FFFFFF
##A63231	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524C30

Deuteranopia (green-blind)

#70652D

Tritanopia (blue-blind)

#B70E33

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a63231;
/* rgb */ color: rgb(166, 50, 49);
/* oklch */ color: oklch(49.2% 0.152 25.1);

Tailwind

colors: {
  custom: {
    50: '#c87169',
    500: '#a63231',
    950: '#000000',
  },
}

SCSS

$custom: #a63231;
$custom-light: #c87169;
$custom-dark: #000000;

JSON

{
  "hex": "#a63231",
  "rgb": {
    "r": 166,
    "g": 50,
    "b": 49
  },
  "hsl": {
    "h": 0.513,
    "s": 54.419,
    "l": 42.157
  },
  "oklch": {
    "l": 0.49167,
    "c": 0.15231,
    "h": 25.1
  },
  "luminance": 0.1061
}

Semantic roles & 50–950 ramp

primary

#A63231

secondary

#73BFC0

accent

#DDDE4A

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140806

muted

#837B7A

Preview Lab

Preview with #A63231

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

Preview Lab → · Contrast checker → · Palette generator →