#A91F21#A91F21

#A91F21 is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.8% C 0.173 H 26.3°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#A91F21
RGB	rgb(169, 31, 33)
HSL	hsl(359, 69%, 39%)
HSV	hsv(359, 82%, 66%)
CMYK	cmyk(0%, 81.7%, 80.5%, 33.7%)
CIE-LAB	lab(36.98, 54.06, 35.46)
CIE-LCH	lch(36.98, 64.65, 33.26°)
OKLab	oklab(47.77% 0.1554 0.0768)
OKLCH	oklch(47.77% 0.173 26.3)
XYZ	xyz(17.1288, 9.5276, 2.3757)
Luminance	0.0953 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A91F21 #1FA9A7

analogous

#A91F66 #A91F21 #A9621F

triadic

#A91F21 #21A91F #1F21A9

tetradic

#A91F21 #66A91F #1FA9A7 #621FA9

square

#A91F21 #66A91F #1FA9A7 #621FA9

split-complementary

#A91F21 #1FA962 #1F66A9

monochromatic

#420C0D #751617 #A91F21 #D82D2F #E26062

Accessibility & contrast

On white

7.23

#A91F21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#A91F21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A91F21

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A91F21	#FFFFFF	#000000	##FFFFFF
##A91F21	1.00	7.23	2.91	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C441F

Deuteranopia (green-blind)

#6D621A

Tritanopia (blue-blind)

#BB0022

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a91f21;
/* rgb */ color: rgb(169, 31, 33);
/* oklch */ color: oklch(47.8% 0.173 26.3);

Tailwind

colors: {
  custom: {
    50: '#cc695d',
    500: '#a91f21',
    950: '#000000',
  },
}

SCSS

$custom: #a91f21;
$custom-light: #cc695d;
$custom-dark: #000000;

JSON

{
  "hex": "#a91f21",
  "rgb": {
    "r": 169,
    "g": 31,
    "b": 33
  },
  "hsl": {
    "h": 359.13,
    "s": 69,
    "l": 39.216
  },
  "oklch": {
    "l": 0.47765,
    "c": 0.17329,
    "h": 26.3
  },
  "luminance": 0.09525
}

Semantic roles & 50–950 ramp

primary

#A91F21

secondary

#5DC7C5

accent

#ECE93C

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A91F21

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

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