#A63D4B#A63D4B

#A63D4B is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.0% C 0.138 H 15.6°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#A63D4B
RGB	rgb(166, 61, 75)
HSL	hsl(352, 46%, 45%)
HSV	hsv(352, 63%, 65%)
CMYK	cmyk(0%, 63.3%, 54.8%, 34.9%)
CIE-LAB	lab(41.14, 44.32, 14.83)
CIE-LCH	lch(41.14, 46.73, 18.50°)
OKLab	oklab(50.99% 0.1333 0.0371)
OKLCH	oklch(50.99% 0.138 15.6)
XYZ	xyz(18.6662, 11.9549, 7.9798)
Luminance	0.1195 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63D4B #3DA698

analogous

#A63D80 #A63D4B #A6643D

triadic

#A63D4B #4BA63D #3D4BA6

tetradic

#A63D4B #80A63D #3DA698 #643DA6

square

#A63D4B #80A63D #3DA698 #643DA6

split-complementary

#A63D4B #3DA664 #3D80A6

monochromatic

#4C1C23 #792D37 #A63D4B #C35D6A #D48A93

Accessibility & contrast

On white

6.19

#A63D4B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#A63D4B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63D4B

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63D4B	#FFFFFF	#000000	##FFFFFF
##A63D4B	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#56534B

Deuteranopia (green-blind)

#716948

Tritanopia (blue-blind)

#B52B43

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #a63d4b;
/* rgb */ color: rgb(166, 61, 75);
/* oklch */ color: oklch(51.0% 0.138 15.6);

Tailwind

colors: {
  custom: {
    50: '#c6787d',
    500: '#a63d4b',
    950: '#000000',
  },
}

SCSS

$custom: #a63d4b;
$custom-light: #c6787d;
$custom-dark: #000000;

JSON

{
  "hex": "#a63d4b",
  "rgb": {
    "r": 166,
    "g": 61,
    "b": 75
  },
  "hsl": {
    "h": 352,
    "s": 46.256,
    "l": 44.51
  },
  "oklch": {
    "l": 0.50985,
    "c": 0.13831,
    "h": 15.6
  },
  "luminance": 0.11952
}

Semantic roles & 50–950 ramp

primary

#A63D4B

secondary

#80BEB6

accent

#D6C452

background

#FCF7F7

surface

#F9EEEE

border

#D2C9C9

text

#140909

muted

#827B7B

Preview Lab

Preview with #A63D4B

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

Preview Lab → · Contrast checker → · Palette generator →