#AD2B22#AD2B22

#AD2B22 is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.5% C 0.168 H 28.7°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#AD2B22
RGB	rgb(173, 43, 34)
HSL	hsl(4, 67%, 41%)
HSV	hsv(4, 80%, 68%)
CMYK	cmyk(0%, 75.1%, 80.3%, 32.2%)
CIE-LAB	lab(39.12, 51.58, 37.33)
CIE-LCH	lch(39.12, 63.67, 35.89°)
OKLab	oklab(49.5% 0.1473 0.0808)
OKLCH	oklch(49.5% 0.168 28.7)
XYZ	xyz(18.3884, 10.7304, 2.6160)
Luminance	0.1073 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD2B22 #22A4AD

analogous

#AD225E #AD2B22 #AD7022

triadic

#AD2B22 #22AD2B #2B22AD

tetradic

#AD2B22 #5EAD22 #22A4AD #7022AD

square

#AD2B22 #5EAD22 #22A4AD #7022AD

split-complementary

#AD2B22 #22AD70 #225EAD

monochromatic

#47120E #7A1E18 #AD2B22 #D73F35 #E17068

Accessibility & contrast

On white

6.68

#AD2B22 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#AD2B22 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD2B22

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD2B22	#FFFFFF	#000000	##FFFFFF
##AD2B22	1.00	6.68	3.15	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534A1F

Deuteranopia (green-blind)

#73661C

Tritanopia (blue-blind)

#BF002A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #ad2b22;
/* rgb */ color: rgb(173, 43, 34);
/* oklch */ color: oklch(49.5% 0.168 28.7);

Tailwind

colors: {
  custom: {
    50: '#cf6f5e',
    500: '#ad2b22',
    950: '#000000',
  },
}

SCSS

$custom: #ad2b22;
$custom-light: #cf6f5e;
$custom-dark: #000000;

JSON

{
  "hex": "#ad2b22",
  "rgb": {
    "r": 173,
    "g": 43,
    "b": 34
  },
  "hsl": {
    "h": 3.885,
    "s": 67.15,
    "l": 40.588
  },
  "oklch": {
    "l": 0.49503,
    "c": 0.16804,
    "h": 28.7
  },
  "luminance": 0.10727
}

Semantic roles & 50–950 ramp

primary

#AD2B22

secondary

#64C1C7

accent

#DFEA3E

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #AD2B22

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

Preview Lab → · Contrast checker → · Palette generator →