#A63A43#A63A43

#A63A43 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.4% C 0.142 H 19.0°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#A63A43
RGB	rgb(166, 58, 67)
HSL	hsl(355, 48%, 44%)
HSV	hsv(355, 65%, 65%)
CMYK	cmyk(0%, 65.1%, 59.6%, 34.9%)
CIE-LAB	lab(40.48, 45.04, 18.91)
CIE-LCH	lch(40.48, 48.85, 22.77°)
OKLab	oklab(50.43% 0.1343 0.0462)
OKLCH	oklch(50.43% 0.142 19)
XYZ	xyz(18.2538, 11.5408, 6.5755)
Luminance	0.1154 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63A43 #3AA69D

analogous

#A63A79 #A63A43 #A6673A

triadic

#A63A43 #43A63A #3A43A6

tetradic

#A63A43 #79A63A #3AA69D #673AA6

square

#A63A43 #79A63A #3AA69D #673AA6

split-complementary

#A63A43 #3AA667 #3A79A6

monochromatic

#4B1A1E #792A31 #A63A43 #C55861 #D5868C

Accessibility & contrast

On white

6.35

#A63A43 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#A63A43 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63A43

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63A43	#FFFFFF	#000000	##FFFFFF
##A63A43	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#555143

Deuteranopia (green-blind)

#716840

Tritanopia (blue-blind)

#B6243E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63a43;
/* rgb */ color: rgb(166, 58, 67);
/* oklch */ color: oklch(50.4% 0.142 19.0);

Tailwind

colors: {
  custom: {
    50: '#c67677',
    500: '#a63a43',
    950: '#000000',
  },
}

SCSS

$custom: #a63a43;
$custom-light: #c67677;
$custom-dark: #000000;

JSON

{
  "hex": "#a63a43",
  "rgb": {
    "r": 166,
    "g": 58,
    "b": 67
  },
  "hsl": {
    "h": 355,
    "s": 48.214,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50431,
    "c": 0.14201,
    "h": 19
  },
  "luminance": 0.11538
}

Semantic roles & 50–950 ramp

primary

#A63A43

secondary

#7DBFB9

accent

#D8CC50

background

#FCF7F7

surface

#F9EDED

border

#D2C8C8

text

#140908

muted

#827B7B

Preview Lab

Preview with #A63A43

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

Preview Lab → · Contrast checker → · Palette generator →