#AA273A#AA273A

#AA273A is a mid, vivid red. Relative luminance 0.103; OKLCH L 49.0% C 0.166 H 18.4°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#AA273A
RGB	rgb(170, 39, 58)
HSL	hsl(351, 63%, 41%)
HSV	hsv(351, 77%, 67%)
CMYK	cmyk(0%, 77.1%, 65.9%, 33.3%)
CIE-LAB	lab(38.38, 53.08, 21.96)
CIE-LCH	lch(38.38, 57.44, 22.47°)
OKLab	oklab(48.96% 0.1577 0.0523)
OKLCH	oklch(48.96% 0.166 18.4)
XYZ	xyz(18.0688, 10.3053, 5.0399)
Luminance	0.1030 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA273A #27AA97

analogous

#AA277B #AA273A #AA5527

triadic

#AA273A #3AAA27 #273AAA

tetradic

#AA273A #7BAA27 #27AA97 #5527AA

square

#AA273A #7BAA27 #27AA97 #5527AA

split-complementary

#AA273A #27AA55 #277BAA

monochromatic

#461018 #781C29 #AA273A #D23C52 #DE6E7E

Accessibility & contrast

On white

6.86

#AA273A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#AA273A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA273A

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA273A	#FFFFFF	#000000	##FFFFFF
##AA273A	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D493A

Deuteranopia (green-blind)

#6E6436

Tritanopia (blue-blind)

#BB002F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #aa273a;
/* rgb */ color: rgb(170, 39, 58);
/* oklch */ color: oklch(49.0% 0.166 18.4);

Tailwind

colors: {
  custom: {
    50: '#cb6d70',
    500: '#aa273a',
    950: '#000000',
  },
}

SCSS

$custom: #aa273a;
$custom-light: #cb6d70;
$custom-dark: #000000;

JSON

{
  "hex": "#aa273a",
  "rgb": {
    "r": 170,
    "g": 39,
    "b": 58
  },
  "hsl": {
    "h": 351.298,
    "s": 62.679,
    "l": 40.98
  },
  "oklch": {
    "l": 0.48955,
    "c": 0.16612,
    "h": 18.4
  },
  "luminance": 0.10303
}

Semantic roles & 50–950 ramp

primary

#AA273A

secondary

#69C4B7

accent

#E6CE42

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#150807

muted

#837A7A

Preview Lab

Preview with #AA273A

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

Preview Lab → · Contrast checker → · Palette generator →