#AD381D#AD381D

#AD381D is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.8% C 0.158 H 34.2°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#AD381D
RGB	rgb(173, 56, 29)
HSL	hsl(11, 71%, 40%)
HSV	hsv(11, 83%, 68%)
CMYK	cmyk(0%, 67.6%, 83.2%, 32.2%)
CIE-LAB	lab(40.90, 46.42, 41.67)
CIE-LCH	lch(40.90, 62.38, 41.91°)
OKLab	oklab(50.82% 0.1303 0.0886)
OKLCH	oklch(50.82% 0.158 34.2)
XYZ	xyz(18.8717, 11.8041, 2.4469)
Luminance	0.1180 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD381D #1D92AD

analogous

#AD1D4A #AD381D #AD801D

triadic

#AD381D #1DAD38 #381DAD

tetradic

#AD381D #4AAD1D #1D92AD #801DAD

square

#AD381D #4AAD1D #1D92AD #801DAD

split-complementary

#AD381D #1DAD80 #1D4AAD

monochromatic

#44160B #792714 #AD381D #DC4D2C #E47960

Accessibility & contrast

On white

6.25

#AD381D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#AD381D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD381D

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD381D	#FFFFFF	#000000	##FFFFFF
##AD381D	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)

#5A5018

Deuteranopia (green-blind)

#776A17

Tritanopia (blue-blind)

#BF1233

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ad381d;
/* rgb */ color: rgb(173, 56, 29);
/* oklch */ color: oklch(50.8% 0.158 34.2);

Tailwind

colors: {
  custom: {
    50: '#ce755c',
    500: '#ad381d',
    950: '#000000',
  },
}

SCSS

$custom: #ad381d;
$custom-light: #ce755c;
$custom-dark: #000000;

JSON

{
  "hex": "#ad381d",
  "rgb": {
    "r": 173,
    "g": 56,
    "b": 29
  },
  "hsl": {
    "h": 11.25,
    "s": 71.287,
    "l": 39.608
  },
  "oklch": {
    "l": 0.50822,
    "c": 0.15761,
    "h": 34.2
  },
  "luminance": 0.11801
}

Semantic roles & 50–950 ramp

primary

#AD381D

secondary

#5DB5C9

accent

#CCEE3A

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AD381D

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

Preview Lab → · Contrast checker → · Palette generator →