#AD2A21#AD2A21

#AD2A21 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.4% C 0.169 H 28.8°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#AD2A21
RGB	rgb(173, 42, 33)
HSL	hsl(4, 68%, 40%)
HSV	hsv(4, 81%, 68%)
CMYK	cmyk(0%, 75.7%, 80.9%, 32.2%)
CIE-LAB	lab(38.99, 51.90, 37.74)
CIE-LCH	lch(38.99, 64.17, 36.03°)
OKLab	oklab(49.4% 0.1481 0.0814)
OKLCH	oklch(49.4% 0.169 28.8)
XYZ	xyz(18.3383, 10.6529, 2.5292)
Luminance	0.1065 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD2A21 #21A4AD

analogous

#AD215E #AD2A21 #AD7021

triadic

#AD2A21 #21AD2A #2A21AD

tetradic

#AD2A21 #5EAD21 #21A4AD #7021AD

square

#AD2A21 #5EAD21 #21A4AD #7021AD

split-complementary

#AD2A21 #21AD70 #215EAD

monochromatic

#46110D #7A1E17 #AD2A21 #D83E33 #E26E66

Accessibility & contrast

On white

6.71

#AD2A21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#AD2A21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD2A21

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD2A21	#FFFFFF	#000000	##FFFFFF
##AD2A21	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524A1E

Deuteranopia (green-blind)

#73661B

Tritanopia (blue-blind)

#BF0029

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #ad2a21;
/* rgb */ color: rgb(173, 42, 33);
/* oklch */ color: oklch(49.4% 0.169 28.8);

Tailwind

colors: {
  custom: {
    50: '#cf6e5d',
    500: '#ad2a21',
    950: '#000000',
  },
}

SCSS

$custom: #ad2a21;
$custom-light: #cf6e5d;
$custom-dark: #000000;

JSON

{
  "hex": "#ad2a21",
  "rgb": {
    "r": 173,
    "g": 42,
    "b": 33
  },
  "hsl": {
    "h": 3.857,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.49401,
    "c": 0.169,
    "h": 28.8
  },
  "luminance": 0.1065
}

Semantic roles & 50–950 ramp

primary

#AD2A21

secondary

#62C1C7

accent

#E0EB3D

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #AD2A21

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

Preview Lab → · Contrast checker → · Palette generator →