#AD273A#AD273A

#AD273A is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.5% C 0.169 H 18.7°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#AD273A
RGB	rgb(173, 39, 58)
HSL	hsl(351, 63%, 42%)
HSV	hsv(351, 77%, 68%)
CMYK	cmyk(0%, 77.5%, 66.5%, 32.2%)
CIE-LAB	lab(38.97, 53.98, 22.83)
CIE-LCH	lch(38.97, 58.61, 22.92°)
OKLab	oklab(49.5% 0.1601 0.0542)
OKLCH	oklch(49.5% 0.169 18.7)
XYZ	xyz(18.7249, 10.6436, 5.0706)
Luminance	0.1064 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD273A #27AD9A

analogous

#AD277D #AD273A #AD5727

triadic

#AD273A #3AAD27 #273AAD

tetradic

#AD273A #7DAD27 #27AD9A #5727AD

square

#AD273A #7DAD27 #27AD9A #5727AD

split-complementary

#AD273A #27AD57 #277DAD

monochromatic

#491019 #7B1C29 #AD273A #D33E53 #DF707F

Accessibility & contrast

On white

6.71

#AD273A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#AD273A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD273A

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD273A	#FFFFFF	#000000	##FFFFFF
##AD273A	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)

#4E4A3A

Deuteranopia (green-blind)

#706636

Tritanopia (blue-blind)

#BE002F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #ad273a;
/* rgb */ color: rgb(173, 39, 58);
/* oklch */ color: oklch(49.5% 0.169 18.7);

Tailwind

colors: {
  custom: {
    50: '#cd6e70',
    500: '#ad273a',
    950: '#000000',
  },
}

SCSS

$custom: #ad273a;
$custom-light: #cd6e70;
$custom-dark: #000000;

JSON

{
  "hex": "#ad273a",
  "rgb": {
    "r": 173,
    "g": 39,
    "b": 58
  },
  "hsl": {
    "h": 351.493,
    "s": 63.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.49497,
    "c": 0.16906,
    "h": 18.7
  },
  "luminance": 0.10641
}

Semantic roles & 50–950 ramp

primary

#AD273A

secondary

#6AC6B9

accent

#E6CF42

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #AD273A

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

Preview Lab → · Contrast checker → · Palette generator →