#A33A3F#A33A3F

#A33A3F is a mid, vivid red. Relative luminance 0.112; OKLCH L 49.9% C 0.139 H 21.0°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#A33A3F
RGB	rgb(163, 58, 63)
HSL	hsl(357, 48%, 43%)
HSV	hsv(357, 64%, 64%)
CMYK	cmyk(0%, 64.4%, 61.3%, 36.1%)
CIE-LAB	lab(39.87, 43.71, 20.49)
CIE-LCH	lch(39.87, 48.28, 25.12°)
OKLab	oklab(49.85% 0.1297 0.0497)
OKLCH	oklch(49.85% 0.139 21)
XYZ	xyz(17.5162, 11.1739, 5.9361)
Luminance	0.1117 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33A3F #3AA39E

analogous

#A33A73 #A33A3F #A3693A

triadic

#A33A3F #3FA33A #3A3FA3

tetradic

#A33A3F #73A33A #3AA39E #693AA3

square

#A33A3F #73A33A #3AA39E #693AA3

split-complementary

#A33A3F #3AA369 #3A73A3

monochromatic

#491A1C #762A2E #A33A3F #C3575C #D38488

Accessibility & contrast

On white

6.49

#A33A3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#A33A3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33A3F

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33A3F	#FFFFFF	#000000	##FFFFFF
##A33A3F	1.00	6.49	3.23	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55503E

Deuteranopia (green-blind)

#6F663C

Tritanopia (blue-blind)

#B2243D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a33a3f;
/* rgb */ color: rgb(163, 58, 63);
/* oklch */ color: oklch(49.9% 0.139 21.0);

Tailwind

colors: {
  custom: {
    50: '#c47674',
    500: '#a33a3f',
    950: '#000000',
  },
}

SCSS

$custom: #a33a3f;
$custom-light: #c47674;
$custom-dark: #000000;

JSON

{
  "hex": "#a33a3f",
  "rgb": {
    "r": 163,
    "g": 58,
    "b": 63
  },
  "hsl": {
    "h": 357.143,
    "s": 47.511,
    "l": 43.333
  },
  "oklch": {
    "l": 0.49853,
    "c": 0.13887,
    "h": 21
  },
  "luminance": 0.11172
}

Semantic roles & 50–950 ramp

primary

#A33A3F

secondary

#7CBDBA

accent

#D7D151

background

#FCF7F7

surface

#F9EDED

border

#D2C8C8

text

#140908

muted

#827B7B

Preview Lab

Preview with #A33A3F

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

Preview Lab → · Contrast checker → · Palette generator →