#AA3937#AA3937

#AA3937 is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.8% C 0.149 H 25.0°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#AA3937
RGB	rgb(170, 57, 55)
HSL	hsl(1, 51%, 44%)
HSV	hsv(1, 68%, 67%)
CMYK	cmyk(0%, 66.5%, 67.6%, 33.3%)
CIE-LAB	lab(40.82, 46.07, 26.84)
CIE-LCH	lch(40.82, 53.32, 30.23°)
OKLab	oklab(50.75% 0.1348 0.0629)
OKLCH	oklch(50.75% 0.149 25)
XYZ	xyz(18.7322, 11.7508, 4.8954)
Luminance	0.1175 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3937 #37A8AA

analogous

#AA376F #AA3937 #AA7237

triadic

#AA3937 #37AA39 #3937AA

tetradic

#AA3937 #6FAA37 #37A8AA #7237AA

square

#AA3937 #6FAA37 #37A8AA #7237AA

split-complementary

#AA3937 #37AA72 #376FAA

monochromatic

#4E1A19 #7C2928 #AA3937 #C85856 #D78684

Accessibility & contrast

On white

6.27

#AA3937 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#AA3937 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3937

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3937	#FFFFFF	#000000	##FFFFFF
##AA3937	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585136

Deuteranopia (green-blind)

#746934

Tritanopia (blue-blind)

#BB1D3A

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #aa3937;
/* rgb */ color: rgb(170, 57, 55);
/* oklch */ color: oklch(50.8% 0.149 25.0);

Tailwind

colors: {
  custom: {
    50: '#ca766e',
    500: '#aa3937',
    950: '#000000',
  },
}

SCSS

$custom: #aa3937;
$custom-light: #ca766e;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3937",
  "rgb": {
    "r": 170,
    "g": 57,
    "b": 55
  },
  "hsl": {
    "h": 1.043,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.50752,
    "c": 0.1487,
    "h": 25
  },
  "luminance": 0.11748
}

Semantic roles & 50–950 ramp

primary

#AA3937

secondary

#7CC0C1

accent

#D8DB4D

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #AA3937

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

Preview Lab → · Contrast checker → · Palette generator →