#AA3639#AA3639

#AA3639 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.4% C 0.152 H 23.0°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#AA3639
RGB	rgb(170, 54, 57)
HSL	hsl(358, 52%, 44%)
HSV	hsv(358, 68%, 67%)
CMYK	cmyk(0%, 68.2%, 66.5%, 33.3%)
CIE-LAB	lab(40.38, 47.46, 25.09)
CIE-LCH	lch(40.38, 53.68, 27.87°)
OKLab	oklab(50.44% 0.1395 0.0592)
OKLCH	oklch(50.44% 0.152 23)
XYZ	xyz(18.6372, 11.4824, 5.1051)
Luminance	0.1148 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3639 #36AAA7

analogous

#AA3673 #AA3639 #AA6D36

triadic

#AA3639 #39AA36 #3639AA

tetradic

#AA3639 #73AA36 #36AAA7 #6D36AA

square

#AA3639 #73AA36 #36AAA7 #6D36AA

split-complementary

#AA3639 #36AA6D #3673AA

monochromatic

#4D181A #7C2729 #AA3639 #C95457 #D88385

Accessibility & contrast

On white

6.37

#AA3639 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#AA3639 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3639

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3639	#FFFFFF	#000000	##FFFFFF
##AA3639	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F38

Deuteranopia (green-blind)

#736836

Tritanopia (blue-blind)

#BB1838

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #aa3639;
/* rgb */ color: rgb(170, 54, 57);
/* oklch */ color: oklch(50.4% 0.152 23.0);

Tailwind

colors: {
  custom: {
    50: '#ca746f',
    500: '#aa3639',
    950: '#000000',
  },
}

SCSS

$custom: #aa3639;
$custom-light: #ca746f;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3639",
  "rgb": {
    "r": 170,
    "g": 54,
    "b": 57
  },
  "hsl": {
    "h": 358.448,
    "s": 51.786,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50436,
    "c": 0.15159,
    "h": 23
  },
  "luminance": 0.1148
}

Semantic roles & 50–950 ramp

primary

#AA3639

secondary

#7BC1BF

accent

#DBD84D

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #AA3639

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

Preview Lab → · Contrast checker → · Palette generator →