#A63536#A63536

#A63536 is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.6% C 0.149 H 23.9°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#A63536
RGB	rgb(166, 53, 54)
HSL	hsl(359, 52%, 43%)
HSV	hsv(359, 68%, 65%)
CMYK	cmyk(0%, 68.1%, 67.5%, 34.9%)
CIE-LAB	lab(39.45, 46.34, 25.61)
CIE-LCH	lch(39.45, 52.95, 28.92°)
OKLab	oklab(49.59% 0.1359 0.0601)
OKLCH	oklch(49.59% 0.149 23.9)
XYZ	xyz(17.6667, 10.9221, 4.6672)
Luminance	0.1092 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63536 #35A6A5

analogous

#A6356E #A63536 #A66C35

triadic

#A63536 #36A635 #3536A6

tetradic

#A63536 #6EA635 #35A6A5 #6C35A6

square

#A63536 #6EA635 #35A6A5 #6C35A6

split-complementary

#A63536 #35A66C #356EA6

monochromatic

#491718 #782627 #A63536 #C75152 #D67F80

Accessibility & contrast

On white

6.60

#A63536 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#A63536 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63536

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63536	#FFFFFF	#000000	##FFFFFF
##A63536	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544E35

Deuteranopia (green-blind)

#706633

Tritanopia (blue-blind)

#B61737

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a63536;
/* rgb */ color: rgb(166, 53, 54);
/* oklch */ color: oklch(49.6% 0.149 23.9);

Tailwind

colors: {
  custom: {
    50: '#c7736d',
    500: '#a63536',
    950: '#000000',
  },
}

SCSS

$custom: #a63536;
$custom-light: #c7736d;
$custom-dark: #000000;

JSON

{
  "hex": "#a63536",
  "rgb": {
    "r": 166,
    "g": 53,
    "b": 54
  },
  "hsl": {
    "h": 359.469,
    "s": 51.598,
    "l": 42.941
  },
  "oklch": {
    "l": 0.49587,
    "c": 0.14861,
    "h": 23.9
  },
  "luminance": 0.1092
}

Semantic roles & 50–950 ramp

primary

#A63536

secondary

#77BFBF

accent

#DBDA4D

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140807

muted

#837B7A

Preview Lab

Preview with #A63536

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

Preview Lab → · Contrast checker → · Palette generator →