#A91F1C#A91F1C

#A91F1C is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.7% C 0.174 H 27.7°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#A91F1C
RGB	rgb(169, 31, 28)
HSL	hsl(1, 72%, 39%)
HSV	hsv(1, 83%, 66%)
CMYK	cmyk(0%, 81.7%, 83.4%, 33.7%)
CIE-LAB	lab(36.93, 53.91, 38.20)
CIE-LCH	lch(36.93, 66.07, 35.32°)
OKLab	oklab(47.71% 0.1539 0.0809)
OKLCH	oklch(47.71% 0.174 27.7)
XYZ	xyz(17.0639, 9.5016, 2.0339)
Luminance	0.0950 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A91F1C #1CA6A9

analogous

#A91C5F #A91F1C #A9651C

triadic

#A91F1C #1CA91F #1F1CA9

tetradic

#A91F1C #5FA91C #1CA6A9 #651CA9

square

#A91F1C #5FA91C #1CA6A9 #651CA9

split-complementary

#A91F1C #1CA965 #1C5FA9

monochromatic

#400C0B #741513 #A91F1C #DB2B27 #E45E5B

Accessibility & contrast

On white

7.24

#A91F1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#A91F1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A91F1C

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A91F1C	#FFFFFF	#000000	##FFFFFF
##A91F1C	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4419

Deuteranopia (green-blind)

#6E6214

Tritanopia (blue-blind)

#BB0021

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a91f1c;
/* rgb */ color: rgb(169, 31, 28);
/* oklch */ color: oklch(47.7% 0.174 27.7);

Tailwind

colors: {
  custom: {
    50: '#cc695a',
    500: '#a91f1c',
    950: '#000000',
  },
}

SCSS

$custom: #a91f1c;
$custom-light: #cc695a;
$custom-dark: #000000;

JSON

{
  "hex": "#a91f1c",
  "rgb": {
    "r": 169,
    "g": 31,
    "b": 28
  },
  "hsl": {
    "h": 1.277,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47714,
    "c": 0.17386,
    "h": 27.7
  },
  "luminance": 0.09499
}

Semantic roles & 50–950 ramp

primary

#A91F1C

secondary

#59C5C8

accent

#EAEE39

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A91F1C

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

Preview Lab → · Contrast checker → · Palette generator →