#A91C1C#A91C1C

#A91C1C is a mid, vivid red. Relative luminance 0.093; OKLCH L 47.5% C 0.176 H 27.2°. Best body text is #FFFFFF at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#A91C1C
RGB	rgb(169, 28, 28)
HSL	hsl(0, 72%, 39%)
HSV	hsv(0, 83%, 66%)
CMYK	cmyk(0%, 83.4%, 83.4%, 33.7%)
CIE-LAB	lab(36.65, 54.70, 37.93)
CIE-LCH	lch(36.65, 66.56, 34.74°)
OKLab	oklab(47.51% 0.1564 0.0803)
OKLCH	oklch(47.51% 0.176 27.2)
XYZ	xyz(16.9892, 9.3522, 2.0090)
Luminance	0.0935 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A91C1C #1CA9A9

analogous

#A91C62 #A91C1C #A9621C

triadic

#A91C1C #1CA91C #1C1CA9

tetradic

#A91C1C #62A91C #1CA9A9 #621CA9

square

#A91C1C #62A91C #1CA9A9 #621CA9

split-complementary

#A91C1C #1CA962 #1C62A9

monochromatic

#400B0B #741313 #A91C1C #DB2727 #E45B5B

Accessibility & contrast

On white

7.32

#A91C1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#A91C1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A91C1C

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A91C1C	#FFFFFF	#000000	##FFFFFF
##A91C1C	1.00	7.32	2.87	7.32
#FFFFFF	7.32	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B431A

Deuteranopia (green-blind)

#6D6114

Tritanopia (blue-blind)

#BB001F

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #a91c1c;
/* rgb */ color: rgb(169, 28, 28);
/* oklch */ color: oklch(47.5% 0.176 27.2);

Tailwind

colors: {
  custom: {
    50: '#cc6859',
    500: '#a91c1c',
    950: '#000000',
  },
}

SCSS

$custom: #a91c1c;
$custom-light: #cc6859;
$custom-dark: #000000;

JSON

{
  "hex": "#a91c1c",
  "rgb": {
    "r": 169,
    "g": 28,
    "b": 28
  },
  "hsl": {
    "h": 0,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47507,
    "c": 0.17579,
    "h": 27.2
  },
  "luminance": 0.09349
}

Semantic roles & 50–950 ramp

primary

#A91C1C

secondary

#59C8C8

accent

#EEEE39

background

#FDF6F5

surface

#FBEBE9

border

#D4C6C5

text

#160704

muted

#847A79

Preview Lab

Preview with #A91C1C

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

Preview Lab → · Contrast checker → · Palette generator →