#A6363F#A6363F

#A6363F is a mid, vivid red. Relative luminance 0.111; OKLCH L 49.9% C 0.147 H 19.7°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#A6363F
RGB	rgb(166, 54, 63)
HSL	hsl(355, 51%, 43%)
HSV	hsv(355, 67%, 65%)
CMYK	cmyk(0%, 67.5%, 62%, 34.9%)
CIE-LAB	lab(39.76, 46.49, 20.45)
CIE-LCH	lch(39.76, 50.79, 23.75°)
OKLab	oklab(49.87% 0.1382 0.0495)
OKLCH	oklch(49.87% 0.147 19.7)
XYZ	xyz(17.9440, 11.1067, 5.9006)
Luminance	0.1110 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6363F #36A69D

analogous

#A63677 #A6363F #A66536

triadic

#A6363F #3FA636 #363FA6

tetradic

#A6363F #77A636 #36A69D #6536A6

square

#A6363F #77A636 #36A69D #6536A6

split-complementary

#A6363F #36A665 #3677A6

monochromatic

#4A181C #78272D #A6363F #C7525C #D68187

Accessibility & contrast

On white

6.52

#A6363F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#A6363F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A6363F

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6363F	#FFFFFF	#000000	##FFFFFF
##A6363F	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534F3F

Deuteranopia (green-blind)

#6F663C

Tritanopia (blue-blind)

#B61C3A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a6363f;
/* rgb */ color: rgb(166, 54, 63);
/* oklch */ color: oklch(49.9% 0.147 19.7);

Tailwind

colors: {
  custom: {
    50: '#c77474',
    500: '#a6363f',
    950: '#000000',
  },
}

SCSS

$custom: #a6363f;
$custom-light: #c77474;
$custom-dark: #000000;

JSON

{
  "hex": "#a6363f",
  "rgb": {
    "r": 166,
    "g": 54,
    "b": 63
  },
  "hsl": {
    "h": 355.179,
    "s": 50.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.4987,
    "c": 0.14675,
    "h": 19.7
  },
  "luminance": 0.11104
}

Semantic roles & 50–950 ramp

primary

#A6363F

secondary

#79BFBA

accent

#DACF4D

background

#FDF7F7

surface

#FAEDED

border

#D3C8C8

text

#140908

muted

#837B7B

Preview Lab

Preview with #A6363F

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

Preview Lab → · Contrast checker → · Palette generator →