#A81E2B#A81E2B

#A81E2B is a mid, vivid red. Relative luminance 0.094; OKLCH L 47.6% C 0.172 H 22.6°. Best body text is #FFFFFF at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#A81E2B
RGB	rgb(168, 30, 43)
HSL	hsl(354, 70%, 39%)
HSV	hsv(354, 82%, 66%)
CMYK	cmyk(0%, 82.1%, 74.4%, 34.1%)
CIE-LAB	lab(36.80, 54.41, 29.27)
CIE-LCH	lch(36.80, 61.78, 28.28°)
OKLab	oklab(47.63% 0.1588 0.0661)
OKLCH	oklch(47.63% 0.172 22.6)
XYZ	xyz(17.0508, 9.4305, 3.2075)
Luminance	0.0943 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A81E2B #1EA89B

analogous

#A81E70 #A81E2B #A8561E

triadic

#A81E2B #2BA81E #1E2BA8

tetradic

#A81E2B #70A81E #1EA89B #561EA8

square

#A81E2B #70A81E #1EA89B #561EA8

split-complementary

#A81E2B #1EA856 #1E70A8

monochromatic

#400B10 #74151E #A81E2B #D92A3B #E25E6B

Accessibility & contrast

On white

7.28

#A81E2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#A81E2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A81E2B

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A81E2B	#FFFFFF	#000000	##FFFFFF
##A81E2B	1.00	7.28	2.89	7.28
#FFFFFF	7.28	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A442A

Deuteranopia (green-blind)

#6C6126

Tritanopia (blue-blind)

#B90025

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a81e2b;
/* rgb */ color: rgb(168, 30, 43);
/* oklch */ color: oklch(47.6% 0.172 22.6);

Tailwind

colors: {
  custom: {
    50: '#cb6964',
    500: '#a81e2b',
    950: '#000000',
  },
}

SCSS

$custom: #a81e2b;
$custom-light: #cb6964;
$custom-dark: #000000;

JSON

{
  "hex": "#a81e2b",
  "rgb": {
    "r": 168,
    "g": 30,
    "b": 43
  },
  "hsl": {
    "h": 354.348,
    "s": 69.697,
    "l": 38.824
  },
  "oklch": {
    "l": 0.47633,
    "c": 0.17205,
    "h": 22.6
  },
  "luminance": 0.09428
}

Semantic roles & 50–950 ramp

primary

#A81E2B

secondary

#5BC7BC

accent

#EDDC3B

background

#FDF6F6

surface

#FBECEB

border

#D4C7C6

text

#150705

muted

#837A7A

Preview Lab

Preview with #A81E2B

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

Preview Lab → · Contrast checker → · Palette generator →