#AC3333#AC3333

#AC3333 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.3% C 0.157 H 24.8°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#AC3333
RGB	rgb(172, 51, 51)
HSL	hsl(0, 54%, 44%)
HSV	hsv(0, 70%, 67%)
CMYK	cmyk(0%, 70.3%, 70.3%, 32.5%)
CIE-LAB	lab(40.21, 49.01, 28.61)
CIE-LCH	lch(40.21, 56.75, 30.28°)
OKLab	oklab(50.35% 0.1429 0.0661)
OKLCH	oklch(50.35% 0.157 24.8)
XYZ	xyz(18.7967, 11.3801, 4.3381)
Luminance	0.1138 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3333 #33ACAC

analogous

#AC336F #AC3333 #AC6F33

triadic

#AC3333 #33AC33 #3333AC

tetradic

#AC3333 #6FAC33 #33ACAC #6F33AC

square

#AC3333 #6FAC33 #33ACAC #6F33AC

split-complementary

#AC3333 #33AC6F #336FAC

monochromatic

#4E1717 #7D2525 #AC3333 #CB5151 #D98080

Accessibility & contrast

On white

6.41

#AC3333 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#AC3333 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3333

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3333	#FFFFFF	#000000	##FFFFFF
##AC3333	1.00	6.41	3.28	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554E32

Deuteranopia (green-blind)

#73682F

Tritanopia (blue-blind)

#BD0B34

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ac3333;
/* rgb */ color: rgb(172, 51, 51);
/* oklch */ color: oklch(50.3% 0.157 24.8);

Tailwind

colors: {
  custom: {
    50: '#cc736b',
    500: '#ac3333',
    950: '#000000',
  },
}

SCSS

$custom: #ac3333;
$custom-light: #cc736b;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3333",
  "rgb": {
    "r": 172,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 54.26,
    "l": 43.725
  },
  "oklch": {
    "l": 0.50349,
    "c": 0.15748,
    "h": 24.8
  },
  "luminance": 0.11377
}

Semantic roles & 50–950 ramp

primary

#AC3333

secondary

#78C2C2

accent

#DEDE4A

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #AC3333

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

Preview Lab → · Contrast checker → · Palette generator →