#A81D31#A81D31

#A81D31 is a mid, vivid red. Relative luminance 0.094; OKLCH L 47.7% C 0.172 H 20.1°. Best body text is #FFFFFF at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#A81D31
RGB	rgb(168, 29, 49)
HSL	hsl(351, 71%, 39%)
HSV	hsv(351, 83%, 66%)
CMYK	cmyk(0%, 82.7%, 70.8%, 34.1%)
CIE-LAB	lab(36.80, 54.94, 25.54)
CIE-LCH	lch(36.80, 60.59, 24.93°)
OKLab	oklab(47.66% 0.1619 0.0591)
OKLCH	oklch(47.66% 0.172 20.1)
XYZ	xyz(17.1442, 9.4280, 3.8222)
Luminance	0.0943 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A81D31 #1DA894

analogous

#A81D76 #A81D31 #A84E1D

triadic

#A81D31 #31A81D #1D31A8

tetradic

#A81D31 #76A81D #1DA894 #4E1DA8

square

#A81D31 #76A81D #1DA894 #4E1DA8

split-complementary

#A81D31 #1DA84E #1D76A8

monochromatic

#400B13 #741422 #A81D31 #DA2842 #E35C70

Accessibility & contrast

On white

7.28

#A81D31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#A81D31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A81D31

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A81D31	#FFFFFF	#000000	##FFFFFF
##A81D31	1.00	7.28	2.89	7.28
#FFFFFF	7.28	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#494431

Deuteranopia (green-blind)

#6B612C

Tritanopia (blue-blind)

#B90026

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a81d31;
/* rgb */ color: rgb(168, 29, 49);
/* oklch */ color: oklch(47.7% 0.172 20.1);

Tailwind

colors: {
  custom: {
    50: '#ca6969',
    500: '#a81d31',
    950: '#000000',
  },
}

SCSS

$custom: #a81d31;
$custom-light: #ca6969;
$custom-dark: #000000;

JSON

{
  "hex": "#a81d31",
  "rgb": {
    "r": 168,
    "g": 29,
    "b": 49
  },
  "hsl": {
    "h": 351.367,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47658,
    "c": 0.17238,
    "h": 20.1
  },
  "luminance": 0.09425
}

Semantic roles & 50–950 ramp

primary

#A81D31

secondary

#5AC7B7

accent

#EDD43A

background

#FDF6F6

surface

#FBECEB

border

#D4C7C6

text

#150706

muted

#837A7A

Preview Lab

Preview with #A81D31

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

Preview Lab → · Contrast checker → · Palette generator →