#A81E31#A81E31

#A81E31 is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.7% C 0.172 H 20.2°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#A81E31
RGB	rgb(168, 30, 49)
HSL	hsl(352, 70%, 39%)
HSV	hsv(352, 82%, 66%)
CMYK	cmyk(0%, 82.1%, 70.8%, 34.1%)
CIE-LAB	lab(36.89, 54.68, 25.65)
CIE-LCH	lch(36.89, 60.40, 25.14°)
OKLab	oklab(47.73% 0.1611 0.0594)
OKLCH	oklch(47.73% 0.172 20.2)
XYZ	xyz(17.1691, 9.4778, 3.8305)
Luminance	0.0948 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A81E31 #1EA895

analogous

#A81E76 #A81E31 #A8501E

triadic

#A81E31 #31A81E #1E31A8

tetradic

#A81E31 #76A81E #1EA895 #501EA8

square

#A81E31 #76A81E #1EA895 #501EA8

split-complementary

#A81E31 #1EA850 #1E76A8

monochromatic

#400B13 #741522 #A81E31 #D92A42 #E25E70

Accessibility & contrast

On white

7.25

#A81E31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#A81E31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A81E31

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A81E31	#FFFFFF	#000000	##FFFFFF
##A81E31	1.00	7.25	2.89	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#494431

Deuteranopia (green-blind)

#6B612C

Tritanopia (blue-blind)

#B90027

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a81e31;
/* rgb */ color: rgb(168, 30, 49);
/* oklch */ color: oklch(47.7% 0.172 20.2);

Tailwind

colors: {
  custom: {
    50: '#ca6969',
    500: '#a81e31',
    950: '#000000',
  },
}

SCSS

$custom: #a81e31;
$custom-light: #ca6969;
$custom-dark: #000000;

JSON

{
  "hex": "#a81e31",
  "rgb": {
    "r": 168,
    "g": 30,
    "b": 49
  },
  "hsl": {
    "h": 351.739,
    "s": 69.697,
    "l": 38.824
  },
  "oklch": {
    "l": 0.47726,
    "c": 0.17168,
    "h": 20.2
  },
  "luminance": 0.09475
}

Semantic roles & 50–950 ramp

primary

#A81E31

secondary

#5BC7B8

accent

#EDD43B

background

#FDF6F6

surface

#FBECEB

border

#D4C7C6

text

#150706

muted

#837A7A

Preview Lab

Preview with #A81E31

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

Preview Lab → · Contrast checker → · Palette generator →