#A91C23#A91C23

#A91C23 is a mid, vivid red. Relative luminance 0.094; OKLCH L 47.6% C 0.175 H 25.1°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#A91C23
RGB	rgb(169, 28, 35)
HSL	hsl(357, 72%, 39%)
HSV	hsv(357, 83%, 66%)
CMYK	cmyk(0%, 83.4%, 79.3%, 33.7%)
CIE-LAB	lab(36.72, 54.91, 34.04)
CIE-LCH	lch(36.72, 64.61, 31.79°)
OKLab	oklab(47.58% 0.1585 0.0743)
OKLCH	oklch(47.58% 0.175 25.1)
XYZ	xyz(17.0829, 9.3897, 2.5027)
Luminance	0.0939 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A91C23 #1CA9A2

analogous

#A91C69 #A91C23 #A95B1C

triadic

#A91C23 #23A91C #1C23A9

tetradic

#A91C23 #69A91C #1CA9A2 #5B1CA9

square

#A91C23 #69A91C #1CA9A2 #5B1CA9

split-complementary

#A91C23 #1CA95B #1C69A9

monochromatic

#400B0D #741318 #A91C23 #DB2730 #E45B62

Accessibility & contrast

On white

7.30

#A91C23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#A91C23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A91C23

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A91C23	#FFFFFF	#000000	##FFFFFF
##A91C23	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4321

Deuteranopia (green-blind)

#6D611D

Tritanopia (blue-blind)

#BB0021

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #a91c23;
/* rgb */ color: rgb(169, 28, 35);
/* oklch */ color: oklch(47.6% 0.175 25.1);

Tailwind

colors: {
  custom: {
    50: '#cc685e',
    500: '#a91c23',
    950: '#000000',
  },
}

SCSS

$custom: #a91c23;
$custom-light: #cc685e;
$custom-dark: #000000;

JSON

{
  "hex": "#a91c23",
  "rgb": {
    "r": 169,
    "g": 28,
    "b": 35
  },
  "hsl": {
    "h": 357.021,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47581,
    "c": 0.17505,
    "h": 25.1
  },
  "luminance": 0.09387
}

Semantic roles & 50–950 ramp

primary

#A91C23

secondary

#59C8C2

accent

#EEE539

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A91C23

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

Preview Lab → · Contrast checker → · Palette generator →