#A7371F#A7371F

#A7371F is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.7% C 0.152 H 33.7°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#A7371F
RGB	rgb(167, 55, 31)
HSL	hsl(11, 69%, 39%)
HSV	hsv(11, 81%, 65%)
CMYK	cmyk(0%, 67.1%, 81.4%, 34.5%)
CIE-LAB	lab(39.66, 44.80, 39.09)
CIE-LCH	lch(39.66, 59.46, 41.11°)
OKLab	oklab(49.69% 0.1263 0.0842)
OKLCH	oklch(49.69% 0.152 33.7)
XYZ	xyz(17.5519, 11.0494, 2.5046)
Luminance	0.1105 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7371F #1F8FA7

analogous

#A71F4B #A7371F #A77B1F

triadic

#A7371F #1FA737 #371FA7

tetradic

#A7371F #4BA71F #1F8FA7 #7B1FA7

square

#A7371F #4BA71F #1F8FA7 #7B1FA7

split-complementary

#A7371F #1FA77B #1F4BA7

monochromatic

#40150C #732615 #A7371F #D84A2B #E1765F

Accessibility & contrast

On white

6.54

#A7371F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#A7371F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A7371F

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7371F	#FFFFFF	#000000	##FFFFFF
##A7371F	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)

#574E1B

Deuteranopia (green-blind)

#73671A

Tritanopia (blue-blind)

#B81532

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a7371f;
/* rgb */ color: rgb(167, 55, 31);
/* oklch */ color: oklch(49.7% 0.152 33.7);

Tailwind

colors: {
  custom: {
    50: '#ca745d',
    500: '#a7371f',
    950: '#000000',
  },
}

SCSS

$custom: #a7371f;
$custom-light: #ca745d;
$custom-dark: #000000;

JSON

{
  "hex": "#a7371f",
  "rgb": {
    "r": 167,
    "g": 55,
    "b": 31
  },
  "hsl": {
    "h": 10.588,
    "s": 68.687,
    "l": 38.824
  },
  "oklch": {
    "l": 0.49692,
    "c": 0.15177,
    "h": 33.7
  },
  "luminance": 0.11047
}

Semantic roles & 50–950 ramp

primary

#A7371F

secondary

#5CB3C6

accent

#CDEC3C

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A7371F

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

Preview Lab → · Contrast checker → · Palette generator →