#A33031#A33031

#A33031 is a mid, vivid red. Relative luminance 0.101; OKLCH L 48.4% C 0.151 H 24.3°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#A33031
RGB	rgb(163, 48, 49)
HSL	hsl(359, 55%, 41%)
HSV	hsv(359, 71%, 64%)
CMYK	cmyk(0%, 70.6%, 69.9%, 36.1%)
CIE-LAB	lab(38.07, 47.10, 26.85)
CIE-LCH	lch(38.07, 54.22, 29.68°)
OKLab	oklab(48.43% 0.1376 0.0623)
OKLCH	oklch(48.43% 0.151 24.3)
XYZ	xyz(16.7174, 10.1246, 3.9791)
Luminance	0.1012 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33031 #30A3A2

analogous

#A3306B #A33031 #A36930

triadic

#A33031 #31A330 #3031A3

tetradic

#A33031 #6BA330 #30A3A2 #6930A3

square

#A33031 #6BA330 #30A3A2 #6930A3

split-complementary

#A33031 #30A369 #306BA3

monochromatic

#441415 #742223 #A33031 #C94748 #D77777

Accessibility & contrast

On white

6.94

#A33031 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#A33031 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33031

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33031	#FFFFFF	#000000	##FFFFFF
##A33031	1.00	6.94	3.02	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504A30

Deuteranopia (green-blind)

#6D632D

Tritanopia (blue-blind)

#B30B32

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a33031;
/* rgb */ color: rgb(163, 48, 49);
/* oklch */ color: oklch(48.4% 0.151 24.3);

Tailwind

colors: {
  custom: {
    50: '#c67069',
    500: '#a33031',
    950: '#000000',
  },
}

SCSS

$custom: #a33031;
$custom-light: #c67069;
$custom-dark: #000000;

JSON

{
  "hex": "#a33031",
  "rgb": {
    "r": 163,
    "g": 48,
    "b": 49
  },
  "hsl": {
    "h": 359.478,
    "s": 54.502,
    "l": 41.373
  },
  "oklch": {
    "l": 0.48425,
    "c": 0.15106,
    "h": 24.3
  },
  "luminance": 0.10122
}

Semantic roles & 50–950 ramp

primary

#A33031

secondary

#70BFBE

accent

#DEDD4A

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140806

muted

#837B7A

Preview Lab

Preview with #A33031

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

Preview Lab → · Contrast checker → · Palette generator →