#AD331F#AD331F

#AD331F is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.3% C 0.162 H 32.0°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#AD331F
RGB	rgb(173, 51, 31)
HSL	hsl(8, 70%, 40%)
HSV	hsv(8, 82%, 68%)
CMYK	cmyk(0%, 70.5%, 82.1%, 32.2%)
CIE-LAB	lab(40.17, 48.52, 39.97)
CIE-LCH	lch(40.17, 62.86, 39.48°)
OKLab	oklab(50.28% 0.1372 0.0856)
OKLCH	oklch(50.28% 0.162 32)
XYZ	xyz(18.6669, 11.3537, 2.5046)
Luminance	0.1135 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD331F #1F99AD

analogous

#AD1F52 #AD331F #AD7A1F

triadic

#AD331F #1FAD33 #331FAD

tetradic

#AD331F #52AD1F #1F99AD #7A1FAD

square

#AD331F #52AD1F #1F99AD #7A1FAD

split-complementary

#AD331F #1FAD7A #1F52AD

monochromatic

#45140C #792416 #AD331F #DA472F #E37563

Accessibility & contrast

On white

6.42

#AD331F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#AD331F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD331F

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD331F	#FFFFFF	#000000	##FFFFFF
##AD331F	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574E1B

Deuteranopia (green-blind)

#756919

Tritanopia (blue-blind)

#BF0030

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ad331f;
/* rgb */ color: rgb(173, 51, 31);
/* oklch */ color: oklch(50.3% 0.162 32.0);

Tailwind

colors: {
  custom: {
    50: '#ce725d',
    500: '#ad331f',
    950: '#000000',
  },
}

SCSS

$custom: #ad331f;
$custom-light: #ce725d;
$custom-dark: #000000;

JSON

{
  "hex": "#ad331f",
  "rgb": {
    "r": 173,
    "g": 51,
    "b": 31
  },
  "hsl": {
    "h": 8.451,
    "s": 69.608,
    "l": 40
  },
  "oklch": {
    "l": 0.50277,
    "c": 0.16169,
    "h": 32
  },
  "luminance": 0.11351
}

Semantic roles & 50–950 ramp

primary

#AD331F

secondary

#60B9C8

accent

#D3EC3B

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #AD331F

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

Preview Lab → · Contrast checker → · Palette generator →