#A63E2A#A63E2A

#A63E2A is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.5% C 0.142 H 32.9°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#A63E2A
RGB	rgb(166, 62, 42)
HSL	hsl(10, 60%, 41%)
HSV	hsv(10, 75%, 65%)
CMYK	cmyk(0%, 62.7%, 74.7%, 34.9%)
CIE-LAB	lab(40.77, 41.73, 34.22)
CIE-LCH	lch(40.77, 53.96, 39.35°)
OKLab	oklab(50.53% 0.119 0.0768)
OKLCH	oklch(50.53% 0.142 32.9)
XYZ	xyz(17.8683, 11.7219, 3.5117)
Luminance	0.1172 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63E2A #2A92A6

analogous

#A62A54 #A63E2A #A67C2A

triadic

#A63E2A #2AA63E #3E2AA6

tetradic

#A63E2A #54A62A #2A92A6 #7C2AA6

square

#A63E2A #54A62A #2A92A6 #7C2AA6

split-complementary

#A63E2A #2AA67C #2A54A6

monochromatic

#441A11 #752C1E #A63E2A #CE563F #DB8170

Accessibility & contrast

On white

6.28

#A63E2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#A63E2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63E2A

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63E2A	#FFFFFF	#000000	##FFFFFF
##A63E2A	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5227

Deuteranopia (green-blind)

#746927

Tritanopia (blue-blind)

#B7253A

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63e2a;
/* rgb */ color: rgb(166, 62, 42);
/* oklch */ color: oklch(50.5% 0.142 32.9);

Tailwind

colors: {
  custom: {
    50: '#c87864',
    500: '#a63e2a',
    950: '#000000',
  },
}

SCSS

$custom: #a63e2a;
$custom-light: #c87864;
$custom-dark: #000000;

JSON

{
  "hex": "#a63e2a",
  "rgb": {
    "r": 166,
    "g": 62,
    "b": 42
  },
  "hsl": {
    "h": 9.677,
    "s": 59.615,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50528,
    "c": 0.1416,
    "h": 32.9
  },
  "luminance": 0.11719
}

Semantic roles & 50–950 ramp

primary

#A63E2A

secondary

#6AB4C2

accent

#C9E345

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140905

muted

#837B7A

Preview Lab

Preview with #A63E2A

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

Preview Lab → · Contrast checker → · Palette generator →