#AD381F#AD381F

#AD381F is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.8% C 0.157 H 33.7°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#AD381F
RGB	rgb(173, 56, 31)
HSL	hsl(11, 70%, 40%)
HSV	hsv(11, 82%, 68%)
CMYK	cmyk(0%, 67.6%, 82.1%, 32.2%)
CIE-LAB	lab(40.92, 46.48, 40.68)
CIE-LCH	lch(40.92, 61.77, 41.19°)
OKLab	oklab(50.84% 0.1309 0.0872)
OKLCH	oklch(50.84% 0.157 33.7)
XYZ	xyz(18.8973, 11.8143, 2.5814)
Luminance	0.1181 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD381F #1F94AD

analogous

#AD1F4D #AD381F #AD7F1F

triadic

#AD381F #1FAD38 #381FAD

tetradic

#AD381F #4DAD1F #1F94AD #7F1FAD

square

#AD381F #4DAD1F #1F94AD #7F1FAD

split-complementary

#AD381F #1FAD7F #1F4DAD

monochromatic

#45160C #792716 #AD381F #DA4D2F #E37A63

Accessibility & contrast

On white

6.25

#AD381F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#AD381F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD381F

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD381F	#FFFFFF	#000000	##FFFFFF
##AD381F	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A501B

Deuteranopia (green-blind)

#776A1A

Tritanopia (blue-blind)

#BF1233

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ad381f;
/* rgb */ color: rgb(173, 56, 31);
/* oklch */ color: oklch(50.8% 0.157 33.7);

Tailwind

colors: {
  custom: {
    50: '#ce755d',
    500: '#ad381f',
    950: '#000000',
  },
}

SCSS

$custom: #ad381f;
$custom-light: #ce755d;
$custom-dark: #000000;

JSON

{
  "hex": "#ad381f",
  "rgb": {
    "r": 173,
    "g": 56,
    "b": 31
  },
  "hsl": {
    "h": 10.563,
    "s": 69.608,
    "l": 40
  },
  "oklch": {
    "l": 0.5084,
    "c": 0.15724,
    "h": 33.7
  },
  "luminance": 0.11812
}

Semantic roles & 50–950 ramp

primary

#AD381F

secondary

#60B6C8

accent

#CDEC3B

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AD381F

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

Preview Lab → · Contrast checker → · Palette generator →