#AA3F31#AA3F31

#AA3F31 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.4% C 0.144 H 30.2°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#AA3F31
RGB	rgb(170, 63, 49)
HSL	hsl(7, 55%, 43%)
HSV	hsv(7, 71%, 67%)
CMYK	cmyk(0%, 62.9%, 71.2%, 33.3%)
CIE-LAB	lab(41.73, 43.07, 31.49)
CIE-LCH	lch(41.73, 53.35, 36.17°)
OKLab	oklab(51.41% 0.1241 0.0721)
OKLCH	oklch(51.41% 0.144 30.2)
XYZ	xyz(18.9114, 12.3254, 4.2884)
Luminance	0.1232 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3F31 #319CAA

analogous

#AA315F #AA3F31 #AA7B31

triadic

#AA3F31 #31AA3F #3F31AA

tetradic

#AA3F31 #5FAA31 #319CAA #7B31AA

square

#AA3F31 #5FAA31 #319CAA #7B31AA

split-complementary

#AA3F31 #31AA7B #315FAA

monochromatic

#4B1C16 #7A2D23 #AA3F31 #CC5B4D #D9877C

Accessibility & contrast

On white

6.06

#AA3F31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#AA3F31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3F31

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3F31	#FFFFFF	#000000	##FFFFFF
##AA3F31	1.00	6.06	3.46	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C542F

Deuteranopia (green-blind)

#776B2E

Tritanopia (blue-blind)

#BB263C

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #aa3f31;
/* rgb */ color: rgb(170, 63, 49);
/* oklch */ color: oklch(51.4% 0.144 30.2);

Tailwind

colors: {
  custom: {
    50: '#ca7969',
    500: '#aa3f31',
    950: '#000000',
  },
}

SCSS

$custom: #aa3f31;
$custom-light: #ca7969;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3f31",
  "rgb": {
    "r": 170,
    "g": 63,
    "b": 49
  },
  "hsl": {
    "h": 6.942,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.5141,
    "c": 0.14353,
    "h": 30.2
  },
  "luminance": 0.12323
}

Semantic roles & 50–950 ramp

primary

#AA3F31

secondary

#75B9C2

accent

#CDDF49

background

#FDF7F6

surface

#FAEEEB

border

#D3C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #AA3F31

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

Preview Lab → · Contrast checker → · Palette generator →