#AC3539#AC3539

#AC3539 is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.7% C 0.155 H 22.8°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#AC3539
RGB	rgb(172, 53, 57)
HSL	hsl(358, 53%, 44%)
HSV	hsv(358, 69%, 67%)
CMYK	cmyk(0%, 69.2%, 66.9%, 32.5%)
CIE-LAB	lab(40.60, 48.54, 25.44)
CIE-LCH	lch(40.60, 54.80, 27.66°)
OKLab	oklab(50.67% 0.1427 0.06)
OKLCH	oklch(50.67% 0.155 22.8)
XYZ	xyz(19.0269, 11.6150, 5.1101)
Luminance	0.1161 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3539 #35ACA8

analogous

#AC3575 #AC3539 #AC6D35

triadic

#AC3539 #39AC35 #3539AC

tetradic

#AC3539 #75AC35 #35ACA8 #6D35AC

square

#AC3539 #75AC35 #35ACA8 #6D35AC

split-complementary

#AC3539 #35AC6D #3575AC

monochromatic

#4E181A #7D2729 #AC3539 #CA5458 #D98386

Accessibility & contrast

On white

6.32

#AC3539 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#AC3539 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3539

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3539	#FFFFFF	#000000	##FFFFFF
##AC3539	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)

#555038

Deuteranopia (green-blind)

#736936

Tritanopia (blue-blind)

#BD1438

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ac3539;
/* rgb */ color: rgb(172, 53, 57);
/* oklch */ color: oklch(50.7% 0.155 22.8);

Tailwind

colors: {
  custom: {
    50: '#cc746f',
    500: '#ac3539',
    950: '#000000',
  },
}

SCSS

$custom: #ac3539;
$custom-light: #cc746f;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3539",
  "rgb": {
    "r": 172,
    "g": 53,
    "b": 57
  },
  "hsl": {
    "h": 357.983,
    "s": 52.889,
    "l": 44.118
  },
  "oklch": {
    "l": 0.50666,
    "c": 0.15479,
    "h": 22.8
  },
  "luminance": 0.11612
}

Semantic roles & 50–950 ramp

primary

#AC3539

secondary

#7BC2C0

accent

#DCD74C

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #AC3539

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

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