#A8371F#A8371F

#A8371F is a mid, vivid red. Relative luminance 0.112; OKLCH L 49.9% C 0.153 H 33.6°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#A8371F
RGB	rgb(168, 55, 31)
HSL	hsl(11, 69%, 39%)
HSV	hsv(11, 82%, 66%)
CMYK	cmyk(0%, 67.3%, 81.5%, 34.1%)
CIE-LAB	lab(39.85, 45.15, 39.33)
CIE-LCH	lch(39.85, 59.88, 41.06°)
OKLab	oklab(49.86% 0.1272 0.0847)
OKLCH	oklch(49.86% 0.153 33.6)
XYZ	xyz(17.7640, 11.1588, 2.5145)
Luminance	0.1116 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A8371F #1F90A8

analogous

#A81F4C #A8371F #A87C1F

triadic

#A8371F #1FA837 #371FA8

tetradic

#A8371F #4CA81F #1F90A8 #7C1FA8

square

#A8371F #4CA81F #1F90A8 #7C1FA8

split-complementary

#A8371F #1FA87C #1F4CA8

monochromatic

#41150C #742615 #A8371F #D84A2C #E27760

Accessibility & contrast

On white

6.50

#A8371F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#A8371F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A8371F

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A8371F	#FFFFFF	#000000	##FFFFFF
##A8371F	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E1B

Deuteranopia (green-blind)

#74671A

Tritanopia (blue-blind)

#B91432

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a8371f;
/* rgb */ color: rgb(168, 55, 31);
/* oklch */ color: oklch(49.9% 0.153 33.6);

Tailwind

colors: {
  custom: {
    50: '#ca745d',
    500: '#a8371f',
    950: '#000000',
  },
}

SCSS

$custom: #a8371f;
$custom-light: #ca745d;
$custom-dark: #000000;

JSON

{
  "hex": "#a8371f",
  "rgb": {
    "r": 168,
    "g": 55,
    "b": 31
  },
  "hsl": {
    "h": 10.511,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.49864,
    "c": 0.15283,
    "h": 33.6
  },
  "luminance": 0.11156
}

Semantic roles & 50–950 ramp

primary

#A8371F

secondary

#5DB4C6

accent

#CDEC3C

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A8371F

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

Preview Lab → · Contrast checker → · Palette generator →