#AD371A#AD371A

#AD371A is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.7% C 0.159 H 34.6°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#AD371A
RGB	rgb(173, 55, 26)
HSL	hsl(12, 74%, 39%)
HSV	hsv(12, 85%, 68%)
CMYK	cmyk(0%, 68.2%, 85%, 32.2%)
CIE-LAB	lab(40.73, 46.76, 42.96)
CIE-LCH	lch(40.73, 63.50, 42.58°)
OKLab	oklab(50.68% 0.1309 0.0904)
OKLCH	oklch(50.68% 0.159 34.6)
XYZ	xyz(18.7884, 11.6940, 2.2449)
Luminance	0.1169 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD371A #1A90AD

analogous

#AD1A47 #AD371A #AD811A

triadic

#AD371A #1AAD37 #371AAD

tetradic

#AD371A #47AD1A #1A90AD #811AAD

square

#AD371A #47AD1A #1A90AD #811AAD

split-complementary

#AD371A #1AAD81 #1A47AD

monochromatic

#43150A #782612 #AD371A #DE4A26 #E6775B

Accessibility & contrast

On white

6.29

#AD371A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#AD371A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD371A

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD371A	#FFFFFF	#000000	##FFFFFF
##AD371A	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)

#5A4F15

Deuteranopia (green-blind)

#776A13

Tritanopia (blue-blind)

#BF0E32

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ad371a;
/* rgb */ color: rgb(173, 55, 26);
/* oklch */ color: oklch(50.7% 0.159 34.6);

Tailwind

colors: {
  custom: {
    50: '#ce745a',
    500: '#ad371a',
    950: '#000000',
  },
}

SCSS

$custom: #ad371a;
$custom-light: #ce745a;
$custom-dark: #000000;

JSON

{
  "hex": "#ad371a",
  "rgb": {
    "r": 173,
    "g": 55,
    "b": 26
  },
  "hsl": {
    "h": 11.837,
    "s": 73.869,
    "l": 39.02
  },
  "oklch": {
    "l": 0.50682,
    "c": 0.15903,
    "h": 34.6
  },
  "luminance": 0.11691
}

Semantic roles & 50–950 ramp

primary

#AD371A

secondary

#59B4CA

accent

#CCF137

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #AD371A

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

Preview Lab → · Contrast checker → · Palette generator →