#AA3537#AA3537

#AA3537 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.3% C 0.153 H 23.6°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#AA3537
RGB	rgb(170, 53, 55)
HSL	hsl(359, 52%, 44%)
HSV	hsv(359, 69%, 67%)
CMYK	cmyk(0%, 68.8%, 67.6%, 33.3%)
CIE-LAB	lab(40.20, 47.75, 26.08)
CIE-LCH	lch(40.20, 54.41, 28.64°)
OKLab	oklab(50.29% 0.1401 0.0612)
OKLCH	oklch(50.29% 0.153 23.6)
XYZ	xyz(18.5422, 11.3708, 4.8321)
Luminance	0.1137 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3537 #35AAA8

analogous

#AA3571 #AA3537 #AA6D35

triadic

#AA3537 #37AA35 #3537AA

tetradic

#AA3537 #71AA35 #35AAA8 #6D35AA

square

#AA3537 #71AA35 #35AAA8 #6D35AA

split-complementary

#AA3537 #35AA6D #3571AA

monochromatic

#4D1819 #7B2628 #AA3537 #C95355 #D88283

Accessibility & contrast

On white

6.41

#AA3537 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#AA3537 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3537

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3537	#FFFFFF	#000000	##FFFFFF
##AA3537	1.00	6.41	3.27	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F36

Deuteranopia (green-blind)

#726834

Tritanopia (blue-blind)

#BB1537

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #aa3537;
/* rgb */ color: rgb(170, 53, 55);
/* oklch */ color: oklch(50.3% 0.153 23.6);

Tailwind

colors: {
  custom: {
    50: '#ca746e',
    500: '#aa3537',
    950: '#000000',
  },
}

SCSS

$custom: #aa3537;
$custom-light: #ca746e;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3537",
  "rgb": {
    "r": 170,
    "g": 53,
    "b": 55
  },
  "hsl": {
    "h": 358.974,
    "s": 52.466,
    "l": 43.725
  },
  "oklch": {
    "l": 0.50289,
    "c": 0.15285,
    "h": 23.6
  },
  "luminance": 0.11368
}

Semantic roles & 50–950 ramp

primary

#AA3537

secondary

#7AC1C0

accent

#DCD94C

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #AA3537

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

Preview Lab → · Contrast checker → · Palette generator →