#AA3F21#AA3F21

#AA3F21 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.2% C 0.147 H 36.1°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#AA3F21
RGB	rgb(170, 63, 33)
HSL	hsl(13, 67%, 40%)
HSV	hsv(13, 81%, 67%)
CMYK	cmyk(0%, 62.9%, 80.6%, 33.3%)
CIE-LAB	lab(41.55, 42.38, 40.09)
CIE-LCH	lch(41.55, 58.34, 43.41°)
OKLab	oklab(51.22% 0.1188 0.0868)
OKLCH	oklch(51.22% 0.147 36.1)
XYZ	xyz(18.6316, 12.2135, 2.8149)
Luminance	0.1221 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3F21 #218CAA

analogous

#AA2147 #AA3F21 #AA8421

triadic

#AA3F21 #21AA3F #3F21AA

tetradic

#AA3F21 #47AA21 #218CAA #8421AA

square

#AA3F21 #47AA21 #218CAA #8421AA

split-complementary

#AA3F21 #21AA84 #2147AA

monochromatic

#43190D #772C17 #AA3F21 #D75531 #E18064

Accessibility & contrast

On white

6.10

#AA3F21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#AA3F21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3F21

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3F21	#FFFFFF	#000000	##FFFFFF
##AA3F21	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D531D

Deuteranopia (green-blind)

#786B1D

Tritanopia (blue-blind)

#BB2339

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #aa3f21;
/* rgb */ color: rgb(170, 63, 33);
/* oklch */ color: oklch(51.2% 0.147 36.1);

Tailwind

colors: {
  custom: {
    50: '#cb795f',
    500: '#aa3f21',
    950: '#000000',
  },
}

SCSS

$custom: #aa3f21;
$custom-light: #cb795f;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3f21",
  "rgb": {
    "r": 170,
    "g": 63,
    "b": 33
  },
  "hsl": {
    "h": 13.139,
    "s": 67.488,
    "l": 39.804
  },
  "oklch": {
    "l": 0.51222,
    "c": 0.14716,
    "h": 36.1
  },
  "luminance": 0.12211
}

Semantic roles & 50–950 ramp

primary

#AA3F21

secondary

#61B0C6

accent

#C4EA3D

background

#FDF7F5

surface

#FBEEE9

border

#D4C9C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AA3F21

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

Preview Lab → · Contrast checker → · Palette generator →