#AD3821#AD3821

#AD3821 is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.9% C 0.157 H 33.1°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#AD3821
RGB	rgb(173, 56, 33)
HSL	hsl(10, 68%, 40%)
HSV	hsv(10, 81%, 68%)
CMYK	cmyk(0%, 67.6%, 80.9%, 32.2%)
CIE-LAB	lab(40.94, 46.55, 39.67)
CIE-LCH	lch(40.94, 61.16, 40.44°)
OKLab	oklab(50.86% 0.1314 0.0856)
OKLCH	oklch(50.86% 0.157 33.1)
XYZ	xyz(18.9244, 11.8252, 2.7246)
Luminance	0.1182 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3821 #2196AD

analogous

#AD2150 #AD3821 #AD7E21

triadic

#AD3821 #21AD38 #3821AD

tetradic

#AD3821 #50AD21 #2196AD #7E21AD

square

#AD3821 #50AD21 #2196AD #7E21AD

split-complementary

#AD3821 #21AD7E #2150AD

monochromatic

#46170D #7A2717 #AD3821 #D84E33 #E27B66

Accessibility & contrast

On white

6.24

#AD3821 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#AD3821 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3821

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3821	#FFFFFF	#000000	##FFFFFF
##AD3821	1.00	6.24	3.36	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A501D

Deuteranopia (green-blind)

#776A1C

Tritanopia (blue-blind)

#BF1334

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ad3821;
/* rgb */ color: rgb(173, 56, 33);
/* oklch */ color: oklch(50.9% 0.157 33.1);

Tailwind

colors: {
  custom: {
    50: '#ce755e',
    500: '#ad3821',
    950: '#000000',
  },
}

SCSS

$custom: #ad3821;
$custom-light: #ce755e;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3821",
  "rgb": {
    "r": 173,
    "g": 56,
    "b": 33
  },
  "hsl": {
    "h": 9.857,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50858,
    "c": 0.15685,
    "h": 33.1
  },
  "luminance": 0.11822
}

Semantic roles & 50–950 ramp

primary

#AD3821

secondary

#62B7C7

accent

#CEEB3D

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AD3821

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

Preview Lab → · Contrast checker → · Palette generator →