#A91E1F#A91E1F

#A91E1F is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.7% C 0.174 H 26.7°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#A91E1F
RGB	rgb(169, 30, 31)
HSL	hsl(360, 70%, 39%)
HSV	hsv(360, 82%, 66%)
CMYK	cmyk(0%, 82.2%, 81.7%, 33.7%)
CIE-LAB	lab(36.87, 54.26, 36.48)
CIE-LCH	lch(36.87, 65.39, 33.91°)
OKLab	oklab(47.67% 0.1556 0.0783)
OKLCH	oklch(47.67% 0.174 26.7)
XYZ	xyz(17.0759, 9.4653, 2.2239)
Luminance	0.0946 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A91E1F #1EA9A8

analogous

#A91E65 #A91E1F #A9631E

triadic

#A91E1F #1FA91E #1E1FA9

tetradic

#A91E1F #65A91E #1EA9A8 #631EA9

square

#A91E1F #65A91E #1EA9A8 #631EA9

split-complementary

#A91E1F #1EA963 #1E65A9

monochromatic

#410C0C #751515 #A91E1F #D92B2C #E35F60

Accessibility & contrast

On white

7.26

#A91E1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#A91E1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A91E1F

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A91E1F	#FFFFFF	#000000	##FFFFFF
##A91E1F	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B441D

Deuteranopia (green-blind)

#6D6118

Tritanopia (blue-blind)

#BB0021

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a91e1f;
/* rgb */ color: rgb(169, 30, 31);
/* oklch */ color: oklch(47.7% 0.174 26.7);

Tailwind

colors: {
  custom: {
    50: '#cc695c',
    500: '#a91e1f',
    950: '#000000',
  },
}

SCSS

$custom: #a91e1f;
$custom-light: #cc695c;
$custom-dark: #000000;

JSON

{
  "hex": "#a91e1f",
  "rgb": {
    "r": 169,
    "g": 30,
    "b": 31
  },
  "hsl": {
    "h": 359.568,
    "s": 69.849,
    "l": 39.02
  },
  "oklch": {
    "l": 0.47672,
    "c": 0.17418,
    "h": 26.7
  },
  "luminance": 0.09462
}

Semantic roles & 50–950 ramp

primary

#A91E1F

secondary

#5CC7C6

accent

#EDEB3B

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A91E1F

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

Preview Lab → · Contrast checker → · Palette generator →