#A33743#A33743

#A33743 is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.6% C 0.142 H 17.6°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#A33743
RGB	rgb(163, 55, 67)
HSL	hsl(353, 50%, 43%)
HSV	hsv(353, 66%, 64%)
CMYK	cmyk(0%, 66.3%, 58.9%, 36.1%)
CIE-LAB	lab(39.46, 45.33, 17.46)
CIE-LCH	lch(39.46, 48.58, 21.06°)
OKLab	oklab(49.57% 0.1355 0.0429)
OKLCH	oklch(49.57% 0.142 17.6)
XYZ	xyz(17.4852, 10.9265, 6.4974)
Luminance	0.1092 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33743 #37A397

analogous

#A33779 #A33743 #A36137

triadic

#A33743 #43A337 #3743A3

tetradic

#A33743 #79A337 #37A397 #6137A3

square

#A33743 #79A337 #37A397 #6137A3

split-complementary

#A33743 #37A361 #3779A3

monochromatic

#47181D #752830 #A33743 #C5525F #D4808A

Accessibility & contrast

On white

6.59

#A33743 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#A33743 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33743

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33743	#FFFFFF	#000000	##FFFFFF
##A33743	1.00	6.59	3.18	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524F43

Deuteranopia (green-blind)

#6E6540

Tritanopia (blue-blind)

#B2213C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a33743;
/* rgb */ color: rgb(163, 55, 67);
/* oklch */ color: oklch(49.6% 0.142 17.6);

Tailwind

colors: {
  custom: {
    50: '#c47477',
    500: '#a33743',
    950: '#000000',
  },
}

SCSS

$custom: #a33743;
$custom-light: #c47477;
$custom-dark: #000000;

JSON

{
  "hex": "#a33743",
  "rgb": {
    "r": 163,
    "g": 55,
    "b": 67
  },
  "hsl": {
    "h": 353.333,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.49567,
    "c": 0.14217,
    "h": 17.6
  },
  "luminance": 0.10924
}

Semantic roles & 50–950 ramp

primary

#A33743

secondary

#78BEB6

accent

#D9CA4F

background

#FCF7F7

surface

#F9EDED

border

#D2C8C8

text

#140908

muted

#827B7B

Preview Lab

Preview with #A33743

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

Preview Lab → · Contrast checker → · Palette generator →