#A8371D#A8371D

#A8371D is a mid, vivid red. Relative luminance 0.111; OKLCH L 49.8% C 0.153 H 34.2°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#A8371D
RGB	rgb(168, 55, 29)
HSL	hsl(11, 71%, 39%)
HSV	hsv(11, 83%, 66%)
CMYK	cmyk(0%, 67.3%, 82.7%, 34.1%)
CIE-LAB	lab(39.83, 45.09, 40.34)
CIE-LCH	lch(39.83, 60.50, 41.82°)
OKLab	oklab(49.85% 0.1267 0.0862)
OKLCH	oklch(49.85% 0.153 34.2)
XYZ	xyz(17.7384, 11.1486, 2.3800)
Luminance	0.1115 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A8371D #1D8EA8

analogous

#A81D48 #A8371D #A87C1D

triadic

#A8371D #1DA837 #371DA8

tetradic

#A8371D #48A81D #1D8EA8 #7C1DA8

square

#A8371D #48A81D #1D8EA8 #7C1DA8

split-complementary

#A8371D #1DA87C #1D48A8

monochromatic

#40150B #742614 #A8371D #DA4928 #E3765C

Accessibility & contrast

On white

6.50

#A8371D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#A8371D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A8371D

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A8371D	#FFFFFF	#000000	##FFFFFF
##A8371D	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)

#584E19

Deuteranopia (green-blind)

#746718

Tritanopia (blue-blind)

#B91332

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a8371d;
/* rgb */ color: rgb(168, 55, 29);
/* oklch */ color: oklch(49.8% 0.153 34.2);

Tailwind

colors: {
  custom: {
    50: '#ca745b',
    500: '#a8371d',
    950: '#000000',
  },
}

SCSS

$custom: #a8371d;
$custom-light: #ca745b;
$custom-dark: #000000;

JSON

{
  "hex": "#a8371d",
  "rgb": {
    "r": 168,
    "g": 55,
    "b": 29
  },
  "hsl": {
    "h": 11.223,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.49845,
    "c": 0.15321,
    "h": 34.2
  },
  "luminance": 0.11146
}

Semantic roles & 50–950 ramp

primary

#A8371D

secondary

#5AB3C7

accent

#CCED3A

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A8371D

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

Preview Lab → · Contrast checker → · Palette generator →