#A6372F#A6372F

#A6372F is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.7% C 0.148 H 27.8°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#A6372F
RGB	rgb(166, 55, 47)
HSL	hsl(4, 56%, 42%)
HSV	hsv(4, 72%, 65%)
CMYK	cmyk(0%, 66.9%, 71.7%, 34.9%)
CIE-LAB	lab(39.66, 45.11, 30.07)
CIE-LCH	lch(39.66, 54.22, 33.69°)
OKLab	oklab(49.71% 0.1306 0.0689)
OKLCH	oklch(49.71% 0.148 27.8)
XYZ	xyz(17.6070, 11.0471, 3.8940)
Luminance	0.1105 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6372F #2F9EA6

analogous

#A62F62 #A6372F #A6732F

triadic

#A6372F #2FA637 #372FA6

tetradic

#A6372F #62A62F #2F9EA6 #732FA6

square

#A6372F #62A62F #2F9EA6 #732FA6

split-complementary

#A6372F #2FA673 #2F62A6

monochromatic

#471714 #762721 #A6372F #CB5047 #D87D77

Accessibility & contrast

On white

6.54

#A6372F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#A6372F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6372F

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6372F	#FFFFFF	#000000	##FFFFFF
##A6372F	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564E2D

Deuteranopia (green-blind)

#71662C

Tritanopia (blue-blind)

#B71936

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a6372f;
/* rgb */ color: rgb(166, 55, 47);
/* oklch */ color: oklch(49.7% 0.148 27.8);

Tailwind

colors: {
  custom: {
    50: '#c87468',
    500: '#a6372f',
    950: '#000000',
  },
}

SCSS

$custom: #a6372f;
$custom-light: #c87468;
$custom-dark: #000000;

JSON

{
  "hex": "#a6372f",
  "rgb": {
    "r": 166,
    "g": 55,
    "b": 47
  },
  "hsl": {
    "h": 4.034,
    "s": 55.869,
    "l": 41.765
  },
  "oklch": {
    "l": 0.49712,
    "c": 0.1476,
    "h": 27.8
  },
  "luminance": 0.11045
}

Semantic roles & 50–950 ramp

primary

#A6372F

secondary

#70BBC1

accent

#D5DF49

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A6372F

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

Preview Lab → · Contrast checker → · Palette generator →