#AA2731#AA2731

#AA2731 is a mid, vivid red. Relative luminance 0.102; OKLCH L 48.8% C 0.167 H 22.3°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#AA2731
RGB	rgb(170, 39, 49)
HSL	hsl(355, 63%, 41%)
HSV	hsv(355, 77%, 67%)
CMYK	cmyk(0%, 77.1%, 71.2%, 33.3%)
CIE-LAB	lab(38.24, 52.60, 27.37)
CIE-LCH	lch(38.24, 59.30, 27.49°)
OKLab	oklab(48.8% 0.1542 0.0631)
OKLCH	oklch(48.8% 0.167 22.3)
XYZ	xyz(17.8595, 10.2216, 3.9377)
Luminance	0.1022 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA2731 #27AAA0

analogous

#AA2772 #AA2731 #AA5E27

triadic

#AA2731 #31AA27 #2731AA

tetradic

#AA2731 #72AA27 #27AAA0 #5E27AA

square

#AA2731 #72AA27 #27AAA0 #5E27AA

split-complementary

#AA2731 #27AA5E #2772AA

monochromatic

#461014 #781C23 #AA2731 #D23C47 #DE6E76

Accessibility & contrast

On white

6.90

#AA2731 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#AA2731 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA2731

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA2731	#FFFFFF	#000000	##FFFFFF
##AA2731	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4830

Deuteranopia (green-blind)

#6F642D

Tritanopia (blue-blind)

#BB002C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #aa2731;
/* rgb */ color: rgb(170, 39, 49);
/* oklch */ color: oklch(48.8% 0.167 22.3);

Tailwind

colors: {
  custom: {
    50: '#cb6d69',
    500: '#aa2731',
    950: '#000000',
  },
}

SCSS

$custom: #aa2731;
$custom-light: #cb6d69;
$custom-dark: #000000;

JSON

{
  "hex": "#aa2731",
  "rgb": {
    "r": 170,
    "g": 39,
    "b": 49
  },
  "hsl": {
    "h": 355.42,
    "s": 62.679,
    "l": 40.98
  },
  "oklch": {
    "l": 0.48798,
    "c": 0.16658,
    "h": 22.3
  },
  "luminance": 0.10219
}

Semantic roles & 50–950 ramp

primary

#AA2731

secondary

#69C4BD

accent

#E6D942

background

#FDF6F6

surface

#FBECEB

border

#D4C7C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #AA2731

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

Preview Lab → · Contrast checker → · Palette generator →