#AA3721#AA3721

#AA3721 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.2% C 0.155 H 32.9°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#AA3721
RGB	rgb(170, 55, 33)
HSL	hsl(10, 67%, 40%)
HSV	hsv(10, 81%, 67%)
CMYK	cmyk(0%, 67.6%, 80.6%, 33.3%)
CIE-LAB	lab(40.23, 45.92, 38.79)
CIE-LCH	lch(40.23, 60.11, 40.19°)
OKLab	oklab(50.23% 0.1298 0.084)
OKLCH	oklch(50.23% 0.155 32.9)
XYZ	xyz(18.2203, 11.3909, 2.6778)
Luminance	0.1139 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3721 #2194AA

analogous

#AA2150 #AA3721 #AA7C21

triadic

#AA3721 #21AA37 #3721AA

tetradic

#AA3721 #50AA21 #2194AA #7C21AA

square

#AA3721 #50AA21 #2194AA #7C21AA

split-complementary

#AA3721 #21AA7C #2150AA

monochromatic

#43160D #772617 #AA3721 #D74C31 #E17864

Accessibility & contrast

On white

6.41

#AA3721 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#AA3721 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3721

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3721	#FFFFFF	#000000	##FFFFFF
##AA3721	1.00	6.41	3.28	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584F1D

Deuteranopia (green-blind)

#75681C

Tritanopia (blue-blind)

#BB1333

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #aa3721;
/* rgb */ color: rgb(170, 55, 33);
/* oklch */ color: oklch(50.2% 0.155 32.9);

Tailwind

colors: {
  custom: {
    50: '#cc745e',
    500: '#aa3721',
    950: '#000000',
  },
}

SCSS

$custom: #aa3721;
$custom-light: #cc745e;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3721",
  "rgb": {
    "r": 170,
    "g": 55,
    "b": 33
  },
  "hsl": {
    "h": 9.635,
    "s": 67.488,
    "l": 39.804
  },
  "oklch": {
    "l": 0.50226,
    "c": 0.15458,
    "h": 32.9
  },
  "luminance": 0.11388
}

Semantic roles & 50–950 ramp

primary

#AA3721

secondary

#61B6C6

accent

#CFEA3D

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AA3721

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

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