#A3333F#A3333F

#A3333F is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.0% C 0.147 H 18.4°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#A3333F
RGB	rgb(163, 51, 63)
HSL	hsl(354, 52%, 42%)
HSV	hsv(354, 69%, 64%)
CMYK	cmyk(0%, 68.7%, 61.3%, 36.1%)
CIE-LAB	lab(38.75, 46.74, 19.03)
CIE-LCH	lch(38.75, 50.47, 22.16°)
OKLab	oklab(49.02% 0.1393 0.0463)
OKLCH	oklch(49.02% 0.147 18.4)
XYZ	xyz(17.1870, 10.5155, 5.8263)
Luminance	0.1051 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3333F #33A397

analogous

#A33377 #A3333F #A35F33

triadic

#A3333F #3FA333 #333FA3

tetradic

#A3333F #77A333 #33A397 #5F33A3

square

#A3333F #77A333 #33A397 #5F33A3

split-complementary

#A3333F #33A35F #3377A3

monochromatic

#46161B #74242D #A3333F #C74C59 #D67B85

Accessibility & contrast

On white

6.77

#A3333F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#A3333F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A3333F

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3333F	#FFFFFF	#000000	##FFFFFF
##A3333F	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504C3F

Deuteranopia (green-blind)

#6D643C

Tritanopia (blue-blind)

#B31938

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a3333f;
/* rgb */ color: rgb(163, 51, 63);
/* oklch */ color: oklch(49.0% 0.147 18.4);

Tailwind

colors: {
  custom: {
    50: '#c57273',
    500: '#a3333f',
    950: '#000000',
  },
}

SCSS

$custom: #a3333f;
$custom-light: #c57273;
$custom-dark: #000000;

JSON

{
  "hex": "#a3333f",
  "rgb": {
    "r": 163,
    "g": 51,
    "b": 63
  },
  "hsl": {
    "h": 353.571,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.49015,
    "c": 0.14681,
    "h": 18.4
  },
  "luminance": 0.10513
}

Semantic roles & 50–950 ramp

primary

#A3333F

secondary

#73BEB6

accent

#DCCC4C

background

#FCF7F7

surface

#F9EDED

border

#D2C8C8

text

#140808

muted

#827B7B

Preview Lab

Preview with #A3333F

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

Preview Lab → · Contrast checker → · Palette generator →