#A63D2A#A63D2A

#A63D2A is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.4% C 0.143 H 32.4°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#A63D2A
RGB	rgb(166, 61, 42)
HSL	hsl(9, 60%, 41%)
HSV	hsv(9, 75%, 65%)
CMYK	cmyk(0%, 63.3%, 74.7%, 34.9%)
CIE-LAB	lab(40.60, 42.19, 34.03)
CIE-LCH	lch(40.60, 54.20, 38.88°)
OKLab	oklab(50.4% 0.1204 0.0764)
OKLCH	oklch(50.4% 0.143 32.4)
XYZ	xyz(17.8144, 11.6141, 3.4937)
Luminance	0.1161 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63D2A #2A93A6

analogous

#A62A55 #A63D2A #A67B2A

triadic

#A63D2A #2AA63D #3D2AA6

tetradic

#A63D2A #55A62A #2A93A6 #7B2AA6

square

#A63D2A #55A62A #2A93A6 #7B2AA6

split-complementary

#A63D2A #2AA67B #2A55A6

monochromatic

#441911 #752B1E #A63D2A #CE553F #DB8070

Accessibility & contrast

On white

6.32

#A63D2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#A63D2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63D2A

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63D2A	#FFFFFF	#000000	##FFFFFF
##A63D2A	1.00	6.32	3.32	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5127

Deuteranopia (green-blind)

#746827

Tritanopia (blue-blind)

#B72339

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63d2a;
/* rgb */ color: rgb(166, 61, 42);
/* oklch */ color: oklch(50.4% 0.143 32.4);

Tailwind

colors: {
  custom: {
    50: '#c87764',
    500: '#a63d2a',
    950: '#000000',
  },
}

SCSS

$custom: #a63d2a;
$custom-light: #c87764;
$custom-dark: #000000;

JSON

{
  "hex": "#a63d2a",
  "rgb": {
    "r": 166,
    "g": 61,
    "b": 42
  },
  "hsl": {
    "h": 9.194,
    "s": 59.615,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50396,
    "c": 0.14259,
    "h": 32.4
  },
  "luminance": 0.11612
}

Semantic roles & 50–950 ramp

primary

#A63D2A

secondary

#6AB4C2

accent

#CBE345

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140905

muted

#837B7A

Preview Lab

Preview with #A63D2A

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

Preview Lab → · Contrast checker → · Palette generator →