#A3383A#A3383A

#A3383A is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.5% C 0.142 H 22.8°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#A3383A
RGB	rgb(163, 56, 58)
HSL	hsl(359, 49%, 43%)
HSV	hsv(359, 66%, 64%)
CMYK	cmyk(0%, 65.6%, 64.4%, 36.1%)
CIE-LAB	lab(39.45, 44.26, 23.04)
CIE-LCH	lch(39.45, 49.90, 27.50°)
OKLab	oklab(49.51% 0.1305 0.055)
OKLCH	oklch(49.51% 0.142 22.8)
XYZ	xyz(17.2839, 10.9227, 5.2003)
Luminance	0.1092 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3383A #38A3A1

analogous

#A3386F #A3383A #A36C38

triadic

#A3383A #3AA338 #383AA3

tetradic

#A3383A #6FA338 #38A3A1 #6C38A3

square

#A3383A #6FA338 #38A3A1 #6C38A3

split-complementary

#A3383A #38A36C #386FA3

monochromatic

#48191A #75282A #A3383A #C45456 #D48283

Accessibility & contrast

On white

6.60

#A3383A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#A3383A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A3383A

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3383A	#FFFFFF	#000000	##FFFFFF
##A3383A	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544F39

Deuteranopia (green-blind)

#6F6537

Tritanopia (blue-blind)

#B3203A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a3383a;
/* rgb */ color: rgb(163, 56, 58);
/* oklch */ color: oklch(49.5% 0.142 22.8);

Tailwind

colors: {
  custom: {
    50: '#c57470',
    500: '#a3383a',
    950: '#000000',
  },
}

SCSS

$custom: #a3383a;
$custom-light: #c57470;
$custom-dark: #000000;

JSON

{
  "hex": "#a3383a",
  "rgb": {
    "r": 163,
    "g": 56,
    "b": 58
  },
  "hsl": {
    "h": 358.879,
    "s": 48.858,
    "l": 42.941
  },
  "oklch": {
    "l": 0.49508,
    "c": 0.14161,
    "h": 22.8
  },
  "luminance": 0.1092
}

Semantic roles & 50–950 ramp

primary

#A3383A

secondary

#79BDBC

accent

#D8D64F

background

#FCF7F6

surface

#F9EDEC

border

#D2C8C7

text

#140907

muted

#827B7A

Preview Lab

Preview with #A3383A

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

Preview Lab → · Contrast checker → · Palette generator →