#AD371C#AD371C

#AD371C is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.7% C 0.159 H 34.1°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#AD371C
RGB	rgb(173, 55, 28)
HSL	hsl(11, 72%, 39%)
HSV	hsv(11, 84%, 68%)
CMYK	cmyk(0%, 68.2%, 83.8%, 32.2%)
CIE-LAB	lab(40.74, 46.81, 42.01)
CIE-LCH	lch(40.74, 62.90, 41.91°)
OKLab	oklab(50.7% 0.1314 0.089)
OKLCH	oklch(50.7% 0.159 34.1)
XYZ	xyz(18.8116, 11.7033, 2.3668)
Luminance	0.1170 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD371C #1C92AD

analogous

#AD1C4A #AD371C #AD7F1C

triadic

#AD371C #1CAD37 #371CAD

tetradic

#AD371C #4AAD1C #1C92AD #7F1CAD

square

#AD371C #4AAD1C #1C92AD #7F1CAD

split-complementary

#AD371C #1CAD7F #1C4AAD

monochromatic

#44160B #782613 #AD371C #DC4B2A #E5775E

Accessibility & contrast

On white

6.29

#AD371C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#AD371C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD371C

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD371C	#FFFFFF	#000000	##FFFFFF
##AD371C	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A4F17

Deuteranopia (green-blind)

#776A16

Tritanopia (blue-blind)

#BF0E32

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ad371c;
/* rgb */ color: rgb(173, 55, 28);
/* oklch */ color: oklch(50.7% 0.159 34.1);

Tailwind

colors: {
  custom: {
    50: '#ce745b',
    500: '#ad371c',
    950: '#000000',
  },
}

SCSS

$custom: #ad371c;
$custom-light: #ce745b;
$custom-dark: #000000;

JSON

{
  "hex": "#ad371c",
  "rgb": {
    "r": 173,
    "g": 55,
    "b": 28
  },
  "hsl": {
    "h": 11.172,
    "s": 72.139,
    "l": 39.412
  },
  "oklch": {
    "l": 0.50698,
    "c": 0.15868,
    "h": 34.1
  },
  "luminance": 0.117
}

Semantic roles & 50–950 ramp

primary

#AD371C

secondary

#5CB5C9

accent

#CDEF39

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AD371C

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

Preview Lab → · Contrast checker → · Palette generator →