#AC3528#AC3528

#AC3528 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.4% C 0.157 H 29.8°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#AC3528
RGB	rgb(172, 53, 40)
HSL	hsl(6, 62%, 42%)
HSV	hsv(6, 77%, 67%)
CMYK	cmyk(0%, 69.2%, 76.7%, 32.5%)
CIE-LAB	lab(40.37, 47.70, 35.22)
CIE-LCH	lch(40.37, 59.29, 36.44°)
OKLab	oklab(50.42% 0.1365 0.0781)
OKLCH	oklch(50.42% 0.157 29.8)
XYZ	xyz(18.6715, 11.4728, 3.2384)
Luminance	0.1147 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3528 #289FAC

analogous

#AC285D #AC3528 #AC7728

triadic

#AC3528 #28AC35 #3528AC

tetradic

#AC3528 #5DAC28 #289FAC #7728AC

square

#AC3528 #5DAC28 #289FAC #7728AC

split-complementary

#AC3528 #28AC77 #285DAC

monochromatic

#491611 #7A261C #AC3528 #D24D3F #DE7B71

Accessibility & contrast

On white

6.38

#AC3528 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#AC3528 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3528

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3528	#FFFFFF	#000000	##FFFFFF
##AC3528	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574F26

Deuteranopia (green-blind)

#756923

Tritanopia (blue-blind)

#BD0D33

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ac3528;
/* rgb */ color: rgb(172, 53, 40);
/* oklch */ color: oklch(50.4% 0.157 29.8);

Tailwind

colors: {
  custom: {
    50: '#cd7363',
    500: '#ac3528',
    950: '#000000',
  },
}

SCSS

$custom: #ac3528;
$custom-light: #cd7363;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3528",
  "rgb": {
    "r": 172,
    "g": 53,
    "b": 40
  },
  "hsl": {
    "h": 5.909,
    "s": 62.264,
    "l": 41.569
  },
  "oklch": {
    "l": 0.50418,
    "c": 0.15727,
    "h": 29.8
  },
  "luminance": 0.1147
}

Semantic roles & 50–950 ramp

primary

#AC3528

secondary

#6BBCC5

accent

#D5E542

background

#FDF7F5

surface

#FBEDEA

border

#D4C8C6

text

#150905

muted

#837B79

Preview Lab

Preview with #AC3528

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

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