#A63E2B#A63E2B

#A63E2B is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.5% C 0.141 H 32.4°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#A63E2B
RGB	rgb(166, 62, 43)
HSL	hsl(9, 59%, 41%)
HSV	hsv(9, 74%, 65%)
CMYK	cmyk(0%, 62.7%, 74.1%, 34.9%)
CIE-LAB	lab(40.78, 41.78, 33.67)
CIE-LCH	lch(40.78, 53.65, 38.87°)
OKLab	oklab(50.54% 0.1193 0.0759)
OKLCH	oklch(50.54% 0.141 32.4)
XYZ	xyz(17.8864, 11.7291, 3.6071)
Luminance	0.1173 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63E2B #2B93A6

analogous

#A62B55 #A63E2B #A67B2B

triadic

#A63E2B #2BA63E #3E2BA6

tetradic

#A63E2B #55A62B #2B93A6 #7B2BA6

square

#A63E2B #55A62B #2B93A6 #7B2BA6

split-complementary

#A63E2B #2BA67B #2B55A6

monochromatic

#451A12 #752C1E #A63E2B #CE5641 #DA8171

Accessibility & contrast

On white

6.28

#A63E2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#A63E2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63E2B

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63E2B	#FFFFFF	#000000	##FFFFFF
##A63E2B	1.00	6.28	3.35	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5228

Deuteranopia (green-blind)

#746928

Tritanopia (blue-blind)

#B7253A

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63e2b;
/* rgb */ color: rgb(166, 62, 43);
/* oklch */ color: oklch(50.5% 0.141 32.4);

Tailwind

colors: {
  custom: {
    50: '#c87865',
    500: '#a63e2b',
    950: '#000000',
  },
}

SCSS

$custom: #a63e2b;
$custom-light: #c87865;
$custom-dark: #000000;

JSON

{
  "hex": "#a63e2b",
  "rgb": {
    "r": 166,
    "g": 62,
    "b": 43
  },
  "hsl": {
    "h": 9.268,
    "s": 58.852,
    "l": 40.98
  },
  "oklch": {
    "l": 0.5054,
    "c": 0.14137,
    "h": 32.4
  },
  "luminance": 0.11727
}

Semantic roles & 50–950 ramp

primary

#A63E2B

secondary

#6BB4C1

accent

#CAE246

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140905

muted

#837B7A

Preview Lab

Preview with #A63E2B

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

Preview Lab → · Contrast checker → · Palette generator →