#A3372D#A3372D

#A3372D is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.2% C 0.145 H 28.7°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#A3372D
RGB	rgb(163, 55, 45)
HSL	hsl(5, 57%, 41%)
HSV	hsv(5, 72%, 64%)
CMYK	cmyk(0%, 66.3%, 72.4%, 36.1%)
CIE-LAB	lab(39.09, 43.96, 30.45)
CIE-LCH	lch(39.09, 53.48, 34.71°)
OKLab	oklab(49.17% 0.1269 0.0695)
OKLCH	oklch(49.17% 0.145 28.7)
XYZ	xyz(16.9459, 10.7108, 3.6572)
Luminance	0.1071 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3372D #2D99A3

analogous

#A32D5E #A3372D #A3722D

triadic

#A3372D #2DA337 #372DA3

tetradic

#A3372D #5EA32D #2D99A3 #722DA3

square

#A3372D #5EA32D #2D99A3 #722DA3

split-complementary

#A3372D #2DA372 #2D5EA3

monochromatic

#431713 #732720 #A3372D #CB4E42 #D87B72

Accessibility & contrast

On white

6.68

#A3372D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#A3372D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A3372D

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3372D	#FFFFFF	#000000	##FFFFFF
##A3372D	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554D2B

Deuteranopia (green-blind)

#70652A

Tritanopia (blue-blind)

#B31B35

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a3372d;
/* rgb */ color: rgb(163, 55, 45);
/* oklch */ color: oklch(49.2% 0.145 28.7);

Tailwind

colors: {
  custom: {
    50: '#c67466',
    500: '#a3372d',
    950: '#000000',
  },
}

SCSS

$custom: #a3372d;
$custom-light: #c67466;
$custom-dark: #000000;

JSON

{
  "hex": "#a3372d",
  "rgb": {
    "r": 163,
    "g": 55,
    "b": 45
  },
  "hsl": {
    "h": 5.085,
    "s": 56.731,
    "l": 40.784
  },
  "oklch": {
    "l": 0.49174,
    "c": 0.14464,
    "h": 28.7
  },
  "luminance": 0.10708
}

Semantic roles & 50–950 ramp

primary

#A3372D

secondary

#6CB9C0

accent

#D3E048

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140806

muted

#837B7A

Preview Lab

Preview with #A3372D

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

Preview Lab → · Contrast checker → · Palette generator →