#A81E2E#A81E2E

#A81E2E is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.7% C 0.172 H 21.4°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#A81E2E
RGB	rgb(168, 30, 46)
HSL	hsl(353, 70%, 39%)
HSV	hsv(353, 82%, 66%)
CMYK	cmyk(0%, 82.1%, 72.6%, 34.1%)
CIE-LAB	lab(36.84, 54.54, 27.47)
CIE-LCH	lch(36.84, 61.06, 26.73°)
OKLab	oklab(47.68% 0.1599 0.0628)
OKLCH	oklch(47.68% 0.172 21.4)
XYZ	xyz(17.1079, 9.4534, 3.5081)
Luminance	0.0945 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A81E2E #1EA898

analogous

#A81E73 #A81E2E #A8531E

triadic

#A81E2E #2EA81E #1E2EA8

tetradic

#A81E2E #73A81E #1EA898 #531EA8

square

#A81E2E #73A81E #1EA898 #531EA8

split-complementary

#A81E2E #1EA853 #1E73A8

monochromatic

#400B12 #741520 #A81E2E #D92A3E #E25E6D

Accessibility & contrast

On white

7.27

#A81E2E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#A81E2E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A81E2E

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A81E2E	#FFFFFF	#000000	##FFFFFF
##A81E2E	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A442D

Deuteranopia (green-blind)

#6C6129

Tritanopia (blue-blind)

#B90026

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a81e2e;
/* rgb */ color: rgb(168, 30, 46);
/* oklch */ color: oklch(47.7% 0.172 21.4);

Tailwind

colors: {
  custom: {
    50: '#ca6966',
    500: '#a81e2e',
    950: '#000000',
  },
}

SCSS

$custom: #a81e2e;
$custom-light: #ca6966;
$custom-dark: #000000;

JSON

{
  "hex": "#a81e2e",
  "rgb": {
    "r": 168,
    "g": 30,
    "b": 46
  },
  "hsl": {
    "h": 353.043,
    "s": 69.697,
    "l": 38.824
  },
  "oklch": {
    "l": 0.47678,
    "c": 0.17184,
    "h": 21.4
  },
  "luminance": 0.09451
}

Semantic roles & 50–950 ramp

primary

#A81E2E

secondary

#5BC7BA

accent

#EDD83B

background

#FDF6F6

surface

#FBECEB

border

#D4C7C6

text

#150706

muted

#837A7A

Preview Lab

Preview with #A81E2E

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

Preview Lab → · Contrast checker → · Palette generator →