#AA3729#AA3729

#AA3729 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.3% C 0.153 H 30.2°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#AA3729
RGB	rgb(170, 55, 41)
HSL	hsl(7, 61%, 41%)
HSV	hsv(7, 76%, 67%)
CMYK	cmyk(0%, 67.6%, 75.9%, 33.3%)
CIE-LAB	lab(40.31, 46.23, 34.49)
CIE-LCH	lch(40.31, 57.67, 36.72°)
OKLab	oklab(50.32% 0.1323 0.0769)
OKLCH	oklch(50.32% 0.153 30.2)
XYZ	xyz(18.3460, 11.4412, 3.3397)
Luminance	0.1144 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3729 #299CAA

analogous

#AA295C #AA3729 #AA7829

triadic

#AA3729 #29AA37 #3729AA

tetradic

#AA3729 #5CAA29 #299CAA #7829AA

square

#AA3729 #5CAA29 #299CAA #7829AA

split-complementary

#AA3729 #29AA78 #295CAA

monochromatic

#471711 #79271D #AA3729 #D14F3F #DD7C71

Accessibility & contrast

On white

6.39

#AA3729 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#AA3729 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3729

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3729	#FFFFFF	#000000	##FFFFFF
##AA3729	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584F27

Deuteranopia (green-blind)

#746825

Tritanopia (blue-blind)

#BB1535

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #aa3729;
/* rgb */ color: rgb(170, 55, 41);
/* oklch */ color: oklch(50.3% 0.153 30.2);

Tailwind

colors: {
  custom: {
    50: '#cb7463',
    500: '#aa3729',
    950: '#000000',
  },
}

SCSS

$custom: #aa3729;
$custom-light: #cb7463;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3729",
  "rgb": {
    "r": 170,
    "g": 55,
    "b": 41
  },
  "hsl": {
    "h": 6.512,
    "s": 61.137,
    "l": 41.373
  },
  "oklch": {
    "l": 0.50315,
    "c": 0.15306,
    "h": 30.2
  },
  "luminance": 0.11439
}

Semantic roles & 50–950 ramp

primary

#AA3729

secondary

#6BBAC4

accent

#D3E444

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #AA3729

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

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