#A91C2B#A91C2B

#A91C2B is a mid, vivid red. Relative luminance 0.094; OKLCH L 47.7% C 0.174 H 22.3°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#A91C2B
RGB	rgb(169, 28, 43)
HSL	hsl(354, 72%, 39%)
HSV	hsv(354, 83%, 66%)
CMYK	cmyk(0%, 83.4%, 74.6%, 33.7%)
CIE-LAB	lab(36.82, 55.21, 29.35)
CIE-LCH	lch(36.82, 62.53, 27.99°)
OKLab	oklab(47.69% 0.1613 0.0663)
OKLCH	oklch(47.69% 0.174 22.3)
XYZ	xyz(17.2155, 9.4427, 3.2012)
Luminance	0.0944 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A91C2B #1CA99A

analogous

#A91C71 #A91C2B #A9531C

triadic

#A91C2B #2BA91C #1C2BA9

tetradic

#A91C2B #71A91C #1CA99A #531CA9

square

#A91C2B #71A91C #1CA99A #531CA9

split-complementary

#A91C2B #1CA953 #1C71A9

monochromatic

#400B10 #74131E #A91C2B #DB273A #E45B6A

Accessibility & contrast

On white

7.27

#A91C2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#A91C2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A91C2B

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A91C2B	#FFFFFF	#000000	##FFFFFF
##A91C2B	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A432A

Deuteranopia (green-blind)

#6C6126

Tritanopia (blue-blind)

#BA0024

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a91c2b;
/* rgb */ color: rgb(169, 28, 43);
/* oklch */ color: oklch(47.7% 0.174 22.3);

Tailwind

colors: {
  custom: {
    50: '#cb6964',
    500: '#a91c2b',
    950: '#000000',
  },
}

SCSS

$custom: #a91c2b;
$custom-light: #cb6964;
$custom-dark: #000000;

JSON

{
  "hex": "#a91c2b",
  "rgb": {
    "r": 169,
    "g": 28,
    "b": 43
  },
  "hsl": {
    "h": 353.617,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47686,
    "c": 0.17435,
    "h": 22.3
  },
  "luminance": 0.0944
}

Semantic roles & 50–950 ramp

primary

#A91C2B

secondary

#59C8BC

accent

#EEDB39

background

#FDF6F6

surface

#FBECEB

border

#D4C7C6

text

#150705

muted

#837A7A

Preview Lab

Preview with #A91C2B

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

Preview Lab → · Contrast checker → · Palette generator →