#A6363D#A6363D

#A6363D is a mid, vivid red. Relative luminance 0.111; OKLCH L 49.8% C 0.147 H 20.7°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#A6363D
RGB	rgb(166, 54, 61)
HSL	hsl(356, 51%, 43%)
HSV	hsv(356, 67%, 65%)
CMYK	cmyk(0%, 67.5%, 63.3%, 34.9%)
CIE-LAB	lab(39.72, 46.36, 21.65)
CIE-LCH	lch(39.72, 51.16, 25.03°)
OKLab	oklab(49.83% 0.1374 0.052)
OKLCH	oklch(49.83% 0.147 20.7)
XYZ	xyz(17.8891, 11.0847, 5.6115)
Luminance	0.1108 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6363D #36A69F

analogous

#A63675 #A6363D #A66736

triadic

#A6363D #3DA636 #363DA6

tetradic

#A6363D #75A636 #36A69F #6736A6

square

#A6363D #75A636 #36A69F #6736A6

split-complementary

#A6363D #36A667 #3675A6

monochromatic

#4A181B #78272C #A6363D #C7525A #D68186

Accessibility & contrast

On white

6.53

#A6363D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#A6363D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6363D

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6363D	#FFFFFF	#000000	##FFFFFF
##A6363D	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534F3C

Deuteranopia (green-blind)

#70663A

Tritanopia (blue-blind)

#B61C39

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a6363d;
/* rgb */ color: rgb(166, 54, 61);
/* oklch */ color: oklch(49.8% 0.147 20.7);

Tailwind

colors: {
  custom: {
    50: '#c77472',
    500: '#a6363d',
    950: '#000000',
  },
}

SCSS

$custom: #a6363d;
$custom-light: #c77472;
$custom-dark: #000000;

JSON

{
  "hex": "#a6363d",
  "rgb": {
    "r": 166,
    "g": 54,
    "b": 61
  },
  "hsl": {
    "h": 356.25,
    "s": 50.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.4983,
    "c": 0.14687,
    "h": 20.7
  },
  "luminance": 0.11082
}

Semantic roles & 50–950 ramp

primary

#A6363D

secondary

#79BFBB

accent

#DAD24D

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140908

muted

#837B7B

Preview Lab

Preview with #A6363D

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

Preview Lab → · Contrast checker → · Palette generator →