#AD381A#AD381A

#AD381A is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.8% C 0.158 H 35.0°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#AD381A
RGB	rgb(173, 56, 26)
HSL	hsl(12, 74%, 39%)
HSV	hsv(12, 85%, 68%)
CMYK	cmyk(0%, 67.6%, 85%, 32.2%)
CIE-LAB	lab(40.88, 46.34, 43.10)
CIE-LCH	lch(40.88, 63.28, 42.93°)
OKLab	oklab(50.8% 0.1296 0.0907)
OKLCH	oklch(50.8% 0.158 35)
XYZ	xyz(18.8364, 11.7900, 2.2609)
Luminance	0.1179 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD381A #1A8FAD

analogous

#AD1A46 #AD381A #AD821A

triadic

#AD381A #1AAD38 #381AAD

tetradic

#AD381A #46AD1A #1A8FAD #821AAD

square

#AD381A #46AD1A #1A8FAD #821AAD

split-complementary

#AD381A #1AAD82 #1A46AD

monochromatic

#43160A #782712 #AD381A #DE4B26 #E6775B

Accessibility & contrast

On white

6.25

#AD381A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#AD381A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD381A

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD381A	#FFFFFF	#000000	##FFFFFF
##AD381A	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)

#5A5015

Deuteranopia (green-blind)

#776A14

Tritanopia (blue-blind)

#BF1132

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ad381a;
/* rgb */ color: rgb(173, 56, 26);
/* oklch */ color: oklch(50.8% 0.158 35.0);

Tailwind

colors: {
  custom: {
    50: '#ce755a',
    500: '#ad381a',
    950: '#000000',
  },
}

SCSS

$custom: #ad381a;
$custom-light: #ce755a;
$custom-dark: #000000;

JSON

{
  "hex": "#ad381a",
  "rgb": {
    "r": 173,
    "g": 56,
    "b": 26
  },
  "hsl": {
    "h": 12.245,
    "s": 73.869,
    "l": 39.02
  },
  "oklch": {
    "l": 0.50798,
    "c": 0.15815,
    "h": 35
  },
  "luminance": 0.11787
}

Semantic roles & 50–950 ramp

primary

#AD381A

secondary

#59B3CA

accent

#CBF137

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AD381A

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

Preview Lab → · Contrast checker → · Palette generator →