#A91F31#A91F31

#A91F31 is a mid, vivid red. Relative luminance 0.096; OKLCH L 48.0% C 0.172 H 20.5°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#A91F31
RGB	rgb(169, 31, 49)
HSL	hsl(352, 69%, 39%)
HSV	hsv(352, 82%, 66%)
CMYK	cmyk(0%, 81.7%, 71%, 33.7%)
CIE-LAB	lab(37.19, 54.70, 26.06)
CIE-LCH	lch(37.19, 60.59, 25.48°)
OKLab	oklab(47.98% 0.161 0.0602)
OKLCH	oklch(47.98% 0.172 20.5)
XYZ	xyz(17.4086, 9.6395, 3.8491)
Luminance	0.0964 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A91F31 #1FA997

analogous

#A91F76 #A91F31 #A9521F

triadic

#A91F31 #31A91F #1F31A9

tetradic

#A91F31 #76A91F #1FA997 #521FA9

square

#A91F31 #76A91F #1FA997 #521FA9

split-complementary

#A91F31 #1FA952 #1F76A9

monochromatic

#420C13 #751622 #A91F31 #D82D43 #E26071

Accessibility & contrast

On white

7.17

#A91F31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#A91F31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A91F31

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A91F31	#FFFFFF	#000000	##FFFFFF
##A91F31	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4530

Deuteranopia (green-blind)

#6C622C

Tritanopia (blue-blind)

#BA0027

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a91f31;
/* rgb */ color: rgb(169, 31, 49);
/* oklch */ color: oklch(48.0% 0.172 20.5);

Tailwind

colors: {
  custom: {
    50: '#cb6a69',
    500: '#a91f31',
    950: '#000000',
  },
}

SCSS

$custom: #a91f31;
$custom-light: #cb6a69;
$custom-dark: #000000;

JSON

{
  "hex": "#a91f31",
  "rgb": {
    "r": 169,
    "g": 31,
    "b": 49
  },
  "hsl": {
    "h": 352.174,
    "s": 69,
    "l": 39.216
  },
  "oklch": {
    "l": 0.47984,
    "c": 0.1719,
    "h": 20.5
  },
  "luminance": 0.09637
}

Semantic roles & 50–950 ramp

primary

#A91F31

secondary

#5DC7B9

accent

#ECD53C

background

#FDF6F6

surface

#FBECEB

border

#D4C7C6

text

#150706

muted

#837A7A

Preview Lab

Preview with #A91F31

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

Preview Lab → · Contrast checker → · Palette generator →