#A6372B#A6372B

#A6372B is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.7% C 0.148 H 29.5°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#A6372B
RGB	rgb(166, 55, 43)
HSL	hsl(6, 59%, 41%)
HSV	hsv(6, 74%, 65%)
CMYK	cmyk(0%, 66.9%, 74.1%, 34.9%)
CIE-LAB	lab(39.61, 44.92, 32.36)
CIE-LCH	lch(39.61, 55.36, 35.76°)
OKLab	oklab(49.66% 0.1291 0.073)
OKLCH	oklch(49.66% 0.148 29.5)
XYZ	xyz(17.5300, 11.0163, 3.4883)
Luminance	0.1101 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6372B #2B9AA6

analogous

#A62B5C #A6372B #A6742B

triadic

#A6372B #2BA637 #372BA6

tetradic

#A6372B #5CA62B #2B9AA6 #742BA6

square

#A6372B #5CA62B #2B9AA6 #742BA6

split-complementary

#A6372B #2BA674 #2B5CA6

monochromatic

#451712 #75271E #A6372B #CE4E41 #DA7B71

Accessibility & contrast

On white

6.56

#A6372B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#A6372B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6372B

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6372B	#FFFFFF	#000000	##FFFFFF
##A6372B	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564E29

Deuteranopia (green-blind)

#726627

Tritanopia (blue-blind)

#B71835

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a6372b;
/* rgb */ color: rgb(166, 55, 43);
/* oklch */ color: oklch(49.7% 0.148 29.5);

Tailwind

colors: {
  custom: {
    50: '#c87465',
    500: '#a6372b',
    950: '#000000',
  },
}

SCSS

$custom: #a6372b;
$custom-light: #c87465;
$custom-dark: #000000;

JSON

{
  "hex": "#a6372b",
  "rgb": {
    "r": 166,
    "g": 55,
    "b": 43
  },
  "hsl": {
    "h": 5.854,
    "s": 58.852,
    "l": 40.98
  },
  "oklch": {
    "l": 0.49657,
    "c": 0.14833,
    "h": 29.5
  },
  "luminance": 0.11014
}

Semantic roles & 50–950 ramp

primary

#A6372B

secondary

#6BB9C1

accent

#D3E246

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #A6372B

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

Preview Lab → · Contrast checker → · Palette generator →