#AD3A21#AD3A21

#AD3A21 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.1% C 0.155 H 33.8°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#AD3A21
RGB	rgb(173, 58, 33)
HSL	hsl(11, 68%, 40%)
HSV	hsv(11, 81%, 68%)
CMYK	cmyk(0%, 66.5%, 80.9%, 32.2%)
CIE-LAB	lab(41.25, 45.69, 39.98)
CIE-LCH	lch(41.25, 60.71, 41.18°)
OKLab	oklab(51.1% 0.1288 0.0863)
OKLCH	oklch(51.1% 0.155 33.8)
XYZ	xyz(19.0233, 12.0230, 2.7575)
Luminance	0.1202 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3A21 #2194AD

analogous

#AD214E #AD3A21 #AD8021

triadic

#AD3A21 #21AD3A #3A21AD

tetradic

#AD3A21 #4EAD21 #2194AD #8021AD

square

#AD3A21 #4EAD21 #2194AD #8021AD

split-complementary

#AD3A21 #21AD80 #214EAD

monochromatic

#46180D #7A2917 #AD3A21 #D85133 #E27D66

Accessibility & contrast

On white

6.17

#AD3A21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#AD3A21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3A21

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3A21	#FFFFFF	#000000	##FFFFFF
##AD3A21	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B511D

Deuteranopia (green-blind)

#786B1C

Tritanopia (blue-blind)

#BF1835

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #ad3a21;
/* rgb */ color: rgb(173, 58, 33);
/* oklch */ color: oklch(51.1% 0.155 33.8);

Tailwind

colors: {
  custom: {
    50: '#ce765e',
    500: '#ad3a21',
    950: '#000000',
  },
}

SCSS

$custom: #ad3a21;
$custom-light: #ce765e;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3a21",
  "rgb": {
    "r": 173,
    "g": 58,
    "b": 33
  },
  "hsl": {
    "h": 10.714,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.51095,
    "c": 0.15502,
    "h": 33.8
  },
  "luminance": 0.1202
}

Semantic roles & 50–950 ramp

primary

#AD3A21

secondary

#62B5C7

accent

#CCEB3D

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AD3A21

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

Preview Lab → · Contrast checker → · Palette generator →