#A63E33#A63E33

#A63E33 is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.7% C 0.140 H 28.9°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#A63E33
RGB	rgb(166, 62, 51)
HSL	hsl(6, 53%, 43%)
HSV	hsv(6, 69%, 65%)
CMYK	cmyk(0%, 62.7%, 69.3%, 34.9%)
CIE-LAB	lab(40.89, 42.19, 29.15)
CIE-LCH	lch(40.89, 51.28, 34.64°)
OKLab	oklab(50.65% 0.1222 0.0675)
OKLCH	oklch(50.65% 0.14 28.9)
XYZ	xyz(18.0479, 11.7937, 4.4574)
Luminance	0.1179 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63E33 #339BA6

analogous

#A63362 #A63E33 #A67733

triadic

#A63E33 #33A63E #3E33A6

tetradic

#A63E33 #62A633 #339BA6 #7733A6

square

#A63E33 #62A633 #339BA6 #7733A6

split-complementary

#A63E33 #33A677 #3362A6

monochromatic

#481B16 #772D25 #A63E33 #C9594E #D7857C

Accessibility & contrast

On white

6.25

#A63E33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#A63E33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63E33

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63E33	#FFFFFF	#000000	##FFFFFF
##A63E33	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5231

Deuteranopia (green-blind)

#746930

Tritanopia (blue-blind)

#B6263C

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63e33;
/* rgb */ color: rgb(166, 62, 51);
/* oklch */ color: oklch(50.7% 0.140 28.9);

Tailwind

colors: {
  custom: {
    50: '#c7786b',
    500: '#a63e33',
    950: '#000000',
  },
}

SCSS

$custom: #a63e33;
$custom-light: #c7786b;
$custom-dark: #000000;

JSON

{
  "hex": "#a63e33",
  "rgb": {
    "r": 166,
    "g": 62,
    "b": 51
  },
  "hsl": {
    "h": 5.739,
    "s": 52.995,
    "l": 42.549
  },
  "oklch": {
    "l": 0.50652,
    "c": 0.13962,
    "h": 28.9
  },
  "luminance": 0.11791
}

Semantic roles & 50–950 ramp

primary

#A63E33

secondary

#75B9C0

accent

#CFDC4B

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A63E33

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

Preview Lab → · Contrast checker → · Palette generator →