#AC3337#AC3337

#AC3337 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.4% C 0.157 H 23.1°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#AC3337
RGB	rgb(172, 51, 55)
HSL	hsl(358, 54%, 44%)
HSV	hsv(358, 70%, 67%)
CMYK	cmyk(0%, 70.3%, 68%, 32.5%)
CIE-LAB	lab(40.27, 49.22, 26.26)
CIE-LCH	lch(40.27, 55.79, 28.08°)
OKLab	oklab(50.41% 0.1445 0.0615)
OKLCH	oklch(50.41% 0.157 23.1)
XYZ	xyz(18.8887, 11.4169, 4.8228)
Luminance	0.1141 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3337 #33ACA8

analogous

#AC3373 #AC3337 #AC6B33

triadic

#AC3337 #37AC33 #3337AC

tetradic

#AC3337 #73AC33 #33ACA8 #6B33AC

square

#AC3337 #73AC33 #33ACA8 #6B33AC

split-complementary

#AC3337 #33AC6B #3373AC

monochromatic

#4E1719 #7D2528 #AC3337 #CB5155 #D98083

Accessibility & contrast

On white

6.40

#AC3337 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#AC3337 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3337

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3337	#FFFFFF	#000000	##FFFFFF
##AC3337	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554E36

Deuteranopia (green-blind)

#736833

Tritanopia (blue-blind)

#BD0D36

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ac3337;
/* rgb */ color: rgb(172, 51, 55);
/* oklch */ color: oklch(50.4% 0.157 23.1);

Tailwind

colors: {
  custom: {
    50: '#cc736e',
    500: '#ac3337',
    950: '#000000',
  },
}

SCSS

$custom: #ac3337;
$custom-light: #cc736e;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3337",
  "rgb": {
    "r": 172,
    "g": 51,
    "b": 55
  },
  "hsl": {
    "h": 358.017,
    "s": 54.26,
    "l": 43.725
  },
  "oklch": {
    "l": 0.50414,
    "c": 0.15701,
    "h": 23.1
  },
  "luminance": 0.11414
}

Semantic roles & 50–950 ramp

primary

#AC3337

secondary

#78C2C0

accent

#DED94A

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#150807

muted

#837B7A

Preview Lab

Preview with #AC3337

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

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