#AC3128#AC3128

#AC3128 is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.0% C 0.161 H 28.5°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#AC3128
RGB	rgb(172, 49, 40)
HSL	hsl(4, 62%, 42%)
HSV	hsv(4, 77%, 67%)
CMYK	cmyk(0%, 71.5%, 76.7%, 32.5%)
CIE-LAB	lab(39.79, 49.29, 34.59)
CIE-LCH	lch(39.79, 60.21, 35.06°)
OKLab	oklab(49.99% 0.1415 0.0767)
OKLCH	oklch(49.99% 0.161 28.5)
XYZ	xyz(18.4967, 11.1233, 3.1801)
Luminance	0.1112 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3128 #28A3AC

analogous

#AC2861 #AC3128 #AC7328

triadic

#AC3128 #28AC31 #3128AC

tetradic

#AC3128 #61AC28 #28A3AC #7328AC

square

#AC3128 #61AC28 #28A3AC #7328AC

split-complementary

#AC3128 #28AC73 #2861AC

monochromatic

#491511 #7A231C #AC3128 #D2493F #DE7871

Accessibility & contrast

On white

6.51

#AC3128 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#AC3128 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3128

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3128	#FFFFFF	#000000	##FFFFFF
##AC3128	1.00	6.51	3.22	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554D26

Deuteranopia (green-blind)

#746823

Tritanopia (blue-blind)

#BD0030

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #ac3128;
/* rgb */ color: rgb(172, 49, 40);
/* oklch */ color: oklch(50.0% 0.161 28.5);

Tailwind

colors: {
  custom: {
    50: '#cd7163',
    500: '#ac3128',
    950: '#000000',
  },
}

SCSS

$custom: #ac3128;
$custom-light: #cd7163;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3128",
  "rgb": {
    "r": 172,
    "g": 49,
    "b": 40
  },
  "hsl": {
    "h": 4.091,
    "s": 62.264,
    "l": 41.569
  },
  "oklch": {
    "l": 0.49985,
    "c": 0.16094,
    "h": 28.5
  },
  "luminance": 0.1112
}

Semantic roles & 50–950 ramp

primary

#AC3128

secondary

#6BBFC5

accent

#DAE542

background

#FDF7F5

surface

#FBEDEA

border

#D4C8C6

text

#150805

muted

#837B79

Preview Lab

Preview with #AC3128

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

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