#A7371D#A7371D

#A7371D is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.7% C 0.152 H 34.3°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#A7371D
RGB	rgb(167, 55, 29)
HSL	hsl(11, 70%, 38%)
HSV	hsv(11, 83%, 65%)
CMYK	cmyk(0%, 67.1%, 82.6%, 34.5%)
CIE-LAB	lab(39.65, 44.74, 40.10)
CIE-LCH	lch(39.65, 60.08, 41.87°)
OKLab	oklab(49.67% 0.1257 0.0858)
OKLCH	oklch(49.67% 0.152 34.3)
XYZ	xyz(17.5263, 11.0392, 2.3701)
Luminance	0.1104 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7371D #1D8DA7

analogous

#A71D48 #A7371D #A77C1D

triadic

#A7371D #1DA737 #371DA7

tetradic

#A7371D #48A71D #1D8DA7 #7C1DA7

square

#A7371D #48A71D #1D8DA7 #7C1DA7

split-complementary

#A7371D #1DA77C #1D48A7

monochromatic

#3F150B #732614 #A7371D #DA4928 #E3755C

Accessibility & contrast

On white

6.55

#A7371D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#A7371D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A7371D

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7371D	#FFFFFF	#000000	##FFFFFF
##A7371D	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E19

Deuteranopia (green-blind)

#736718

Tritanopia (blue-blind)

#B81432

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a7371d;
/* rgb */ color: rgb(167, 55, 29);
/* oklch */ color: oklch(49.7% 0.152 34.3);

Tailwind

colors: {
  custom: {
    50: '#ca745b',
    500: '#a7371d',
    950: '#000000',
  },
}

SCSS

$custom: #a7371d;
$custom-light: #ca745b;
$custom-dark: #000000;

JSON

{
  "hex": "#a7371d",
  "rgb": {
    "r": 167,
    "g": 55,
    "b": 29
  },
  "hsl": {
    "h": 11.304,
    "s": 70.408,
    "l": 38.431
  },
  "oklch": {
    "l": 0.49674,
    "c": 0.15215,
    "h": 34.3
  },
  "luminance": 0.11037
}

Semantic roles & 50–950 ramp

primary

#A7371D

secondary

#59B2C7

accent

#CCED3B

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A7371D

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

Preview Lab → · Contrast checker → · Palette generator →