#A63A4B#A63A4B

#A63A4B is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.6% C 0.142 H 14.5°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#A63A4B
RGB	rgb(166, 58, 75)
HSL	hsl(351, 48%, 44%)
HSV	hsv(351, 65%, 65%)
CMYK	cmyk(0%, 65.1%, 54.8%, 34.9%)
CIE-LAB	lab(40.64, 45.67, 14.15)
CIE-LCH	lch(40.64, 47.81, 17.21°)
OKLab	oklab(50.61% 0.1375 0.0355)
OKLCH	oklch(50.61% 0.142 14.5)
XYZ	xyz(18.5106, 11.6435, 7.9279)
Luminance	0.1164 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63A4B #3AA695

analogous

#A63A81 #A63A4B #A65F3A

triadic

#A63A4B #4BA63A #3A4BA6

tetradic

#A63A4B #81A63A #3AA695 #5F3AA6

square

#A63A4B #81A63A #3AA695 #5F3AA6

split-complementary

#A63A4B #3AA65F #3A81A6

monochromatic

#4B1A22 #792A37 #A63A4B #C55869 #D58692

Accessibility & contrast

On white

6.31

#A63A4B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#A63A4B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63A4B

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63A4B	#FFFFFF	#000000	##FFFFFF
##A63A4B	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54524B

Deuteranopia (green-blind)

#6F6848

Tritanopia (blue-blind)

#B52741

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63a4b;
/* rgb */ color: rgb(166, 58, 75);
/* oklch */ color: oklch(50.6% 0.142 14.5);

Tailwind

colors: {
  custom: {
    50: '#c6767d',
    500: '#a63a4b',
    950: '#000000',
  },
}

SCSS

$custom: #a63a4b;
$custom-light: #c6767d;
$custom-dark: #000000;

JSON

{
  "hex": "#a63a4b",
  "rgb": {
    "r": 166,
    "g": 58,
    "b": 75
  },
  "hsl": {
    "h": 350.556,
    "s": 48.214,
    "l": 43.922
  },
  "oklch": {
    "l": 0.5061,
    "c": 0.14202,
    "h": 14.5
  },
  "luminance": 0.11641
}

Semantic roles & 50–950 ramp

primary

#A63A4B

secondary

#7DBFB4

accent

#D8C250

background

#FCF7F7

surface

#F9EDEE

border

#D2C8C9

text

#140909

muted

#827B7B

Preview Lab

Preview with #A63A4B

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

Preview Lab → · Contrast checker → · Palette generator →