#A81F2A#A81F2A

#A81F2A is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.7% C 0.171 H 23.2°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#A81F2A
RGB	rgb(168, 31, 42)
HSL	hsl(355, 69%, 39%)
HSV	hsv(355, 82%, 66%)
CMYK	cmyk(0%, 81.5%, 75%, 34.1%)
CIE-LAB	lab(36.88, 54.09, 29.97)
CIE-LCH	lch(36.88, 61.84, 28.99°)
OKLab	oklab(47.69% 0.1576 0.0675)
OKLCH	oklch(47.69% 0.171 23.2)
XYZ	xyz(17.0584, 9.4747, 3.1207)
Luminance	0.0947 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A81F2A #1FA89D

analogous

#A81F6F #A81F2A #A8581F

triadic

#A81F2A #2AA81F #1F2AA8

tetradic

#A81F2A #6FA81F #1FA89D #581FA8

square

#A81F2A #6FA81F #1FA89D #581FA8

split-complementary

#A81F2A #1FA858 #1F6FA8

monochromatic

#410C10 #74151D #A81F2A #D82C3A #E2606A

Accessibility & contrast

On white

7.26

#A81F2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#A81F2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A81F2A

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A81F2A	#FFFFFF	#000000	##FFFFFF
##A81F2A	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)

#4A4429

Deuteranopia (green-blind)

#6C6125

Tritanopia (blue-blind)

#B90025

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a81f2a;
/* rgb */ color: rgb(168, 31, 42);
/* oklch */ color: oklch(47.7% 0.171 23.2);

Tailwind

colors: {
  custom: {
    50: '#cb6963',
    500: '#a81f2a',
    950: '#000000',
  },
}

SCSS

$custom: #a81f2a;
$custom-light: #cb6963;
$custom-dark: #000000;

JSON

{
  "hex": "#a81f2a",
  "rgb": {
    "r": 168,
    "g": 31,
    "b": 42
  },
  "hsl": {
    "h": 355.182,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.4769,
    "c": 0.17143,
    "h": 23.2
  },
  "luminance": 0.09472
}

Semantic roles & 50–950 ramp

primary

#A81F2A

secondary

#5DC6BE

accent

#ECDE3C

background

#FDF6F5

surface

#FBECEA

border

#D4C7C6

text

#150705

muted

#837A79

Preview Lab

Preview with #A81F2A

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

Preview Lab → · Contrast checker → · Palette generator →