#A63F4B#A63F4B

#A63F4B is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.2% C 0.136 H 16.3°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#A63F4B
RGB	rgb(166, 63, 75)
HSL	hsl(353, 45%, 45%)
HSV	hsv(353, 62%, 65%)
CMYK	cmyk(0%, 62%, 54.8%, 34.9%)
CIE-LAB	lab(41.49, 43.40, 15.30)
CIE-LCH	lch(41.49, 46.01, 19.41°)
OKLab	oklab(51.24% 0.1303 0.0382)
OKLCH	oklch(51.24% 0.136 16.3)
XYZ	xyz(18.7750, 12.1724, 8.0161)
Luminance	0.1217 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63F4B #3FA69A

analogous

#A63F7E #A63F4B #A6673F

triadic

#A63F4B #4BA63F #3F4BA6

tetradic

#A63F4B #7EA63F #3FA69A #673FA6

square

#A63F4B #7EA63F #3FA69A #673FA6

split-complementary

#A63F4B #3FA667 #3F7EA6

monochromatic

#4D1D23 #7A2E37 #A63F4B #C3606B #D38C94

Accessibility & contrast

On white

6.12

#A63F4B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#A63F4B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63F4B

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63F4B	#FFFFFF	#000000	##FFFFFF
##A63F4B	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57544B

Deuteranopia (green-blind)

#726A49

Tritanopia (blue-blind)

#B52D44

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #a63f4b;
/* rgb */ color: rgb(166, 63, 75);
/* oklch */ color: oklch(51.2% 0.136 16.3);

Tailwind

colors: {
  custom: {
    50: '#c6797d',
    500: '#a63f4b',
    950: '#000000',
  },
}

SCSS

$custom: #a63f4b;
$custom-light: #c6797d;
$custom-dark: #000000;

JSON

{
  "hex": "#a63f4b",
  "rgb": {
    "r": 166,
    "g": 63,
    "b": 75
  },
  "hsl": {
    "h": 353.01,
    "s": 44.978,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51243,
    "c": 0.13581,
    "h": 16.3
  },
  "luminance": 0.1217
}

Semantic roles & 50–950 ramp

primary

#A63F4B

secondary

#83BEB7

accent

#D5C653

background

#FCF7F7

surface

#F9EEEE

border

#D2C9C9

text

#140909

muted

#827B7B

Preview Lab

Preview with #A63F4B

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

Preview Lab → · Contrast checker → · Palette generator →