#A81E37#A81E37

#A81E37 is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.8% C 0.172 H 17.7°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#A81E37
RGB	rgb(168, 30, 55)
HSL	hsl(349, 70%, 39%)
HSV	hsv(349, 82%, 66%)
CMYK	cmyk(0%, 82.1%, 67.3%, 34.1%)
CIE-LAB	lab(36.99, 54.98, 22.00)
CIE-LCH	lch(36.99, 59.22, 21.80°)
OKLab	oklab(47.83% 0.1634 0.0521)
OKLCH	oklch(47.83% 0.172 17.7)
XYZ	xyz(17.3042, 9.5319, 4.5424)
Luminance	0.0953 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A81E37 #1EA88F

analogous

#A81E7C #A81E37 #A84A1E

triadic

#A81E37 #37A81E #1E37A8

tetradic

#A81E37 #7CA81E #1EA88F #4A1EA8

square

#A81E37 #7CA81E #1EA88F #4A1EA8

split-complementary

#A81E37 #1EA84A #1E7CA8

monochromatic

#400B15 #741526 #A81E37 #D92A4A #E25E76

Accessibility & contrast

On white

7.23

#A81E37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#A81E37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A81E37

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A81E37	#FFFFFF	#000000	##FFFFFF
##A81E37	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)

#484537

Deuteranopia (green-blind)

#6B6133

Tritanopia (blue-blind)

#B90029

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a81e37;
/* rgb */ color: rgb(168, 30, 55);
/* oklch */ color: oklch(47.8% 0.172 17.7);

Tailwind

colors: {
  custom: {
    50: '#ca696d',
    500: '#a81e37',
    950: '#000000',
  },
}

SCSS

$custom: #a81e37;
$custom-light: #ca696d;
$custom-dark: #000000;

JSON

{
  "hex": "#a81e37",
  "rgb": {
    "r": 168,
    "g": 30,
    "b": 55
  },
  "hsl": {
    "h": 349.13,
    "s": 69.697,
    "l": 38.824
  },
  "oklch": {
    "l": 0.47833,
    "c": 0.17152,
    "h": 17.7
  },
  "luminance": 0.09529
}

Semantic roles & 50–950 ramp

primary

#A81E37

secondary

#5BC7B3

accent

#EDCC3B

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#150707

muted

#837A7A

Preview Lab

Preview with #A81E37

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

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