#AC3720#AC3720

#AC3720 is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.6% C 0.157 H 33.1°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#AC3720
RGB	rgb(172, 55, 32)
HSL	hsl(10, 69%, 40%)
HSV	hsv(10, 81%, 67%)
CMYK	cmyk(0%, 68%, 81.4%, 32.5%)
CIE-LAB	lab(40.59, 46.59, 39.79)
CIE-LCH	lch(40.59, 61.26, 40.50°)
OKLab	oklab(50.56% 0.1315 0.0856)
OKLCH	oklch(50.56% 0.157 33.1)
XYZ	xyz(18.6423, 11.6101, 2.6256)
Luminance	0.1161 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3720 #2095AC

analogous

#AC204F #AC3720 #AC7D20

triadic

#AC3720 #20AC37 #3720AC

tetradic

#AC3720 #4FAC20 #2095AC #7D20AC

square

#AC3720 #4FAC20 #2095AC #7D20AC

split-complementary

#AC3720 #20AC7D #204FAC

monochromatic

#45160D #782616 #AC3720 #D94C31 #E27964

Accessibility & contrast

On white

6.32

#AC3720 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#AC3720 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3720

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3720	#FFFFFF	#000000	##FFFFFF
##AC3720	1.00	6.32	3.32	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594F1C

Deuteranopia (green-blind)

#76691B

Tritanopia (blue-blind)

#BE1033

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ac3720;
/* rgb */ color: rgb(172, 55, 32);
/* oklch */ color: oklch(50.6% 0.157 33.1);

Tailwind

colors: {
  custom: {
    50: '#cd745d',
    500: '#ac3720',
    950: '#000000',
  },
}

SCSS

$custom: #ac3720;
$custom-light: #cd745d;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3720",
  "rgb": {
    "r": 172,
    "g": 55,
    "b": 32
  },
  "hsl": {
    "h": 9.857,
    "s": 68.627,
    "l": 40
  },
  "oklch": {
    "l": 0.50561,
    "c": 0.15689,
    "h": 33.1
  },
  "luminance": 0.11607
}

Semantic roles & 50–950 ramp

primary

#AC3720

secondary

#60B6C7

accent

#CFEB3C

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AC3720

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

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