#AC3828#AC3828

#AC3828 is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.8% C 0.154 H 30.8°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#AC3828
RGB	rgb(172, 56, 40)
HSL	hsl(7, 62%, 42%)
HSV	hsv(7, 77%, 67%)
CMYK	cmyk(0%, 67.4%, 76.7%, 32.5%)
CIE-LAB	lab(40.82, 46.46, 35.71)
CIE-LCH	lch(40.82, 58.59, 37.55°)
OKLab	oklab(50.76% 0.1326 0.0792)
OKLCH	oklch(50.76% 0.154 30.8)
XYZ	xyz(18.8125, 11.7550, 3.2854)
Luminance	0.1175 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3828 #289CAC

analogous

#AC285A #AC3828 #AC7A28

triadic

#AC3828 #28AC38 #3828AC

tetradic

#AC3828 #5AAC28 #289CAC #7A28AC

square

#AC3828 #5AAC28 #289CAC #7A28AC

split-complementary

#AC3828 #28AC7A #285AAC

monochromatic

#491811 #7A281C #AC3828 #D2513F #DE7E71

Accessibility & contrast

On white

6.27

#AC3828 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#AC3828 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3828

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3828	#FFFFFF	#000000	##FFFFFF
##AC3828	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)

#595025

Deuteranopia (green-blind)

#766A24

Tritanopia (blue-blind)

#BD1535

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ac3828;
/* rgb */ color: rgb(172, 56, 40);
/* oklch */ color: oklch(50.8% 0.154 30.8);

Tailwind

colors: {
  custom: {
    50: '#cd7563',
    500: '#ac3828',
    950: '#000000',
  },
}

SCSS

$custom: #ac3828;
$custom-light: #cd7563;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3828",
  "rgb": {
    "r": 172,
    "g": 56,
    "b": 40
  },
  "hsl": {
    "h": 7.273,
    "s": 62.264,
    "l": 41.569
  },
  "oklch": {
    "l": 0.50762,
    "c": 0.15444,
    "h": 30.8
  },
  "luminance": 0.11752
}

Semantic roles & 50–950 ramp

primary

#AC3828

secondary

#6BBAC5

accent

#D2E542

background

#FDF7F5

surface

#FBEDEA

border

#D4C8C6

text

#150905

muted

#837B79

Preview Lab

Preview with #AC3828

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

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