#AC3733#AC3733

#AC3733 is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.8% C 0.154 H 26.1°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#AC3733
RGB	rgb(172, 55, 51)
HSL	hsl(2, 54%, 44%)
HSV	hsv(2, 70%, 67%)
CMYK	cmyk(0%, 68%, 70.3%, 32.5%)
CIE-LAB	lab(40.81, 47.39, 29.32)
CIE-LCH	lch(40.81, 55.72, 31.75°)
OKLab	oklab(50.79% 0.1378 0.0676)
OKLCH	oklch(50.79% 0.154 26.1)
XYZ	xyz(18.9790, 11.7448, 4.3989)
Luminance	0.1174 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3733 #33A8AC

analogous

#AC336B #AC3733 #AC7333

triadic

#AC3733 #33AC37 #3733AC

tetradic

#AC3733 #6BAC33 #33A8AC #7333AC

square

#AC3733 #6BAC33 #33A8AC #7333AC

split-complementary

#AC3733 #33AC73 #336BAC

monochromatic

#4E1917 #7D2825 #AC3733 #CB5551 #D98380

Accessibility & contrast

On white

6.27

#AC3733 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#AC3733 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3733

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3733	#FFFFFF	#000000	##FFFFFF
##AC3733	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575032

Deuteranopia (green-blind)

#756A2F

Tritanopia (blue-blind)

#BD1637

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ac3733;
/* rgb */ color: rgb(172, 55, 51);
/* oklch */ color: oklch(50.8% 0.154 26.1);

Tailwind

colors: {
  custom: {
    50: '#cc756b',
    500: '#ac3733',
    950: '#000000',
  },
}

SCSS

$custom: #ac3733;
$custom-light: #cc756b;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3733",
  "rgb": {
    "r": 172,
    "g": 55,
    "b": 51
  },
  "hsl": {
    "h": 1.983,
    "s": 54.26,
    "l": 43.725
  },
  "oklch": {
    "l": 0.50794,
    "c": 0.15351,
    "h": 26.1
  },
  "luminance": 0.11742
}

Semantic roles & 50–950 ramp

primary

#AC3733

secondary

#78C0C2

accent

#D9DE4A

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #AC3733

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

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