#A63D2C#A63D2C

#A63D2C is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.4% C 0.142 H 31.6°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#A63D2C
RGB	rgb(166, 61, 44)
HSL	hsl(8, 58%, 41%)
HSV	hsv(8, 73%, 65%)
CMYK	cmyk(0%, 63.3%, 73.5%, 34.9%)
CIE-LAB	lab(40.62, 42.29, 32.92)
CIE-LCH	lch(40.62, 53.59, 37.90°)
OKLab	oklab(50.42% 0.1211 0.0744)
OKLCH	oklch(50.42% 0.142 31.6)
XYZ	xyz(17.8511, 11.6288, 3.6870)
Luminance	0.1163 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63D2C #2C95A6

analogous

#A62C58 #A63D2C #A67A2C

triadic

#A63D2C #2CA63D #3D2CA6

tetradic

#A63D2C #58A62C #2C95A6 #7A2CA6

square

#A63D2C #58A62C #2C95A6 #7A2CA6

split-complementary

#A63D2C #2CA67A #2C58A6

monochromatic

#451912 #762B1F #A63D2C #CD5642 #DA8173

Accessibility & contrast

On white

6.32

#A63D2C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#A63D2C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63D2C

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63D2C	#FFFFFF	#000000	##FFFFFF
##A63D2C	1.00	6.32	3.33	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A512A

Deuteranopia (green-blind)

#746829

Tritanopia (blue-blind)

#B7243A

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63d2c;
/* rgb */ color: rgb(166, 61, 44);
/* oklch */ color: oklch(50.4% 0.142 31.6);

Tailwind

colors: {
  custom: {
    50: '#c87766',
    500: '#a63d2c',
    950: '#000000',
  },
}

SCSS

$custom: #a63d2c;
$custom-light: #c87766;
$custom-dark: #000000;

JSON

{
  "hex": "#a63d2c",
  "rgb": {
    "r": 166,
    "g": 61,
    "b": 44
  },
  "hsl": {
    "h": 8.361,
    "s": 58.095,
    "l": 41.176
  },
  "oklch": {
    "l": 0.50422,
    "c": 0.14214,
    "h": 31.6
  },
  "luminance": 0.11626
}

Semantic roles & 50–950 ramp

primary

#A63D2C

secondary

#6DB5C1

accent

#CCE146

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A63D2C

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

Preview Lab → · Contrast checker → · Palette generator →