#A33A33#A33A33

#A33A33 is a mid, vivid red. Relative luminance 0.111; OKLCH L 49.6% C 0.140 H 27.2°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#A33A33
RGB	rgb(163, 58, 51)
HSL	hsl(4, 52%, 42%)
HSV	hsv(4, 69%, 64%)
CMYK	cmyk(0%, 64.4%, 68.7%, 36.1%)
CIE-LAB	lab(39.67, 42.94, 27.57)
CIE-LCH	lch(39.67, 51.03, 32.70°)
OKLab	oklab(49.64% 0.1249 0.0642)
OKLCH	oklch(49.64% 0.14 27.2)
XYZ	xyz(17.2166, 11.0540, 4.3584)
Luminance	0.1105 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33A33 #339CA3

analogous

#A33364 #A33A33 #A37233

triadic

#A33A33 #33A33A #3A33A3

tetradic

#A33A33 #64A333 #339CA3 #7233A3

square

#A33A33 #64A333 #339CA3 #7233A3

split-complementary

#A33A33 #33A372 #3364A3

monochromatic

#461916 #742924 #A33A33 #C7544C #D6807B

Accessibility & contrast

On white

6.54

#A33A33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#A33A33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33A33

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33A33	#FFFFFF	#000000	##FFFFFF
##A33A33	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564F32

Deuteranopia (green-blind)

#706630

Tritanopia (blue-blind)

#B32139

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a33a33;
/* rgb */ color: rgb(163, 58, 51);
/* oklch */ color: oklch(49.6% 0.140 27.2);

Tailwind

colors: {
  custom: {
    50: '#c5756b',
    500: '#a33a33',
    950: '#000000',
  },
}

SCSS

$custom: #a33a33;
$custom-light: #c5756b;
$custom-dark: #000000;

JSON

{
  "hex": "#a33a33",
  "rgb": {
    "r": 163,
    "g": 58,
    "b": 51
  },
  "hsl": {
    "h": 3.75,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.49638,
    "c": 0.14044,
    "h": 27.2
  },
  "luminance": 0.11052
}

Semantic roles & 50–950 ramp

primary

#A33A33

secondary

#73BABE

accent

#D3DC4C

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A33A33

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

Preview Lab → · Contrast checker → · Palette generator →