#AA3638#AA3638

#AA3638 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.4% C 0.152 H 23.5°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#AA3638
RGB	rgb(170, 54, 56)
HSL	hsl(359, 52%, 44%)
HSV	hsv(359, 68%, 67%)
CMYK	cmyk(0%, 68.2%, 67.1%, 33.3%)
CIE-LAB	lab(40.37, 47.40, 25.68)
CIE-LCH	lch(40.37, 53.91, 28.45°)
OKLab	oklab(50.42% 0.1392 0.0604)
OKLCH	oklch(50.42% 0.152 23.5)
XYZ	xyz(18.6125, 11.4726, 4.9750)
Luminance	0.1147 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3638 #36AAA8

analogous

#AA3672 #AA3638 #AA6E36

triadic

#AA3638 #38AA36 #3638AA

tetradic

#AA3638 #72AA36 #36AAA8 #6E36AA

square

#AA3638 #72AA36 #36AAA8 #6E36AA

split-complementary

#AA3638 #36AA6E #3672AA

monochromatic

#4D1819 #7C2729 #AA3638 #C95456 #D88384

Accessibility & contrast

On white

6.38

#AA3638 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#AA3638 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3638

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3638	#FFFFFF	#000000	##FFFFFF
##AA3638	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F37

Deuteranopia (green-blind)

#736835

Tritanopia (blue-blind)

#BB1738

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #aa3638;
/* rgb */ color: rgb(170, 54, 56);
/* oklch */ color: oklch(50.4% 0.152 23.5);

Tailwind

colors: {
  custom: {
    50: '#ca746e',
    500: '#aa3638',
    950: '#000000',
  },
}

SCSS

$custom: #aa3638;
$custom-light: #ca746e;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3638",
  "rgb": {
    "r": 170,
    "g": 54,
    "b": 56
  },
  "hsl": {
    "h": 358.966,
    "s": 51.786,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50419,
    "c": 0.15171,
    "h": 23.5
  },
  "luminance": 0.1147
}

Semantic roles & 50–950 ramp

primary

#AA3638

secondary

#7BC1C0

accent

#DBD94D

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #AA3638

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

Preview Lab → · Contrast checker → · Palette generator →