#A63A42#A63A42

#A63A42 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.4% C 0.142 H 19.6°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#A63A42
RGB	rgb(166, 58, 66)
HSL	hsl(356, 48%, 44%)
HSV	hsv(356, 65%, 65%)
CMYK	cmyk(0%, 65.1%, 60.2%, 34.9%)
CIE-LAB	lab(40.46, 44.97, 19.50)
CIE-LCH	lch(40.46, 49.01, 23.45°)
OKLab	oklab(50.41% 0.1339 0.0475)
OKLCH	oklch(50.41% 0.142 19.6)
XYZ	xyz(18.2240, 11.5289, 6.4189)
Luminance	0.1153 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63A42 #3AA69E

analogous

#A63A78 #A63A42 #A6683A

triadic

#A63A42 #42A63A #3A42A6

tetradic

#A63A42 #78A63A #3AA69E #683AA6

square

#A63A42 #78A63A #3AA69E #683AA6

split-complementary

#A63A42 #3AA668 #3A78A6

monochromatic

#4B1A1E #792A30 #A63A42 #C55860 #D5868C

Accessibility & contrast

On white

6.35

#A63A42 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#A63A42 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63A42

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63A42	#FFFFFF	#000000	##FFFFFF
##A63A42	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)

#555142

Deuteranopia (green-blind)

#71683F

Tritanopia (blue-blind)

#B6243E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63a42;
/* rgb */ color: rgb(166, 58, 66);
/* oklch */ color: oklch(50.4% 0.142 19.6);

Tailwind

colors: {
  custom: {
    50: '#c67676',
    500: '#a63a42',
    950: '#000000',
  },
}

SCSS

$custom: #a63a42;
$custom-light: #c67676;
$custom-dark: #000000;

JSON

{
  "hex": "#a63a42",
  "rgb": {
    "r": 166,
    "g": 58,
    "b": 66
  },
  "hsl": {
    "h": 355.556,
    "s": 48.214,
    "l": 43.922
  },
  "oklch": {
    "l": 0.5041,
    "c": 0.14205,
    "h": 19.6
  },
  "luminance": 0.11526
}

Semantic roles & 50–950 ramp

primary

#A63A42

secondary

#7DBFBA

accent

#D8CE50

background

#FCF7F7

surface

#F9EDED

border

#D2C8C8

text

#140908

muted

#827B7B

Preview Lab

Preview with #A63A42

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

Preview Lab → · Contrast checker → · Palette generator →