#A63C2A#A63C2A

#A63C2A is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.3% C 0.144 H 32.0°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#A63C2A
RGB	rgb(166, 60, 42)
HSL	hsl(9, 60%, 41%)
HSV	hsv(9, 75%, 65%)
CMYK	cmyk(0%, 63.9%, 74.7%, 34.9%)
CIE-LAB	lab(40.42, 42.65, 33.84)
CIE-LCH	lch(40.42, 54.44, 38.43°)
OKLab	oklab(50.27% 0.1218 0.076)
OKLCH	oklch(50.27% 0.144 32)
XYZ	xyz(17.7616, 11.5084, 3.4761)
Luminance	0.1151 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63C2A #2A94A6

analogous

#A62A56 #A63C2A #A67A2A

triadic

#A63C2A #2AA63C #3C2AA6

tetradic

#A63C2A #56A62A #2A94A6 #7A2AA6

square

#A63C2A #56A62A #2A94A6 #7A2AA6

split-complementary

#A63C2A #2AA67A #2A56A6

monochromatic

#441911 #752A1E #A63C2A #CE543F #DB7F70

Accessibility & contrast

On white

6.36

#A63C2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#A63C2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63C2A

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63C2A	#FFFFFF	#000000	##FFFFFF
##A63C2A	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595127

Deuteranopia (green-blind)

#746827

Tritanopia (blue-blind)

#B72138

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63c2a;
/* rgb */ color: rgb(166, 60, 42);
/* oklch */ color: oklch(50.3% 0.144 32.0);

Tailwind

colors: {
  custom: {
    50: '#c87764',
    500: '#a63c2a',
    950: '#000000',
  },
}

SCSS

$custom: #a63c2a;
$custom-light: #c87764;
$custom-dark: #000000;

JSON

{
  "hex": "#a63c2a",
  "rgb": {
    "r": 166,
    "g": 60,
    "b": 42
  },
  "hsl": {
    "h": 8.71,
    "s": 59.615,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50266,
    "c": 0.14358,
    "h": 32
  },
  "luminance": 0.11506
}

Semantic roles & 50–950 ramp

primary

#A63C2A

secondary

#6AB5C2

accent

#CCE345

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140905

muted

#837B7A

Preview Lab

Preview with #A63C2A

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

Preview Lab → · Contrast checker → · Palette generator →