#AC303B#AC303B

#AC303B is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.2% C 0.160 H 20.4°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#AC303B
RGB	rgb(172, 48, 59)
HSL	hsl(355, 56%, 43%)
HSV	hsv(355, 72%, 67%)
CMYK	cmyk(0%, 72.1%, 65.7%, 32.5%)
CIE-LAB	lab(39.92, 50.61, 23.36)
CIE-LCH	lch(39.92, 55.74, 24.78°)
OKLab	oklab(50.17% 0.1497 0.0555)
OKLCH	oklch(50.17% 0.16 20.4)
XYZ	xyz(18.8616, 11.2031, 5.3061)
Luminance	0.1120 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC303B #30ACA1

analogous

#AC3079 #AC303B #AC6330

triadic

#AC303B #3BAC30 #303BAC

tetradic

#AC303B #79AC30 #30ACA1 #6330AC

square

#AC303B #79AC30 #30ACA1 #6330AC

split-complementary

#AC303B #30AC63 #3079AC

monochromatic

#4C151A #7C232B #AC303B #CD4C58 #DA7C84

Accessibility & contrast

On white

6.48

#AC303B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#AC303B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC303B

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC303B	#FFFFFF	#000000	##FFFFFF
##AC303B	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524D3A

Deuteranopia (green-blind)

#726837

Tritanopia (blue-blind)

#BD0535

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #ac303b;
/* rgb */ color: rgb(172, 48, 59);
/* oklch */ color: oklch(50.2% 0.160 20.4);

Tailwind

colors: {
  custom: {
    50: '#cc7170',
    500: '#ac303b',
    950: '#000000',
  },
}

SCSS

$custom: #ac303b;
$custom-light: #cc7170;
$custom-dark: #000000;

JSON

{
  "hex": "#ac303b",
  "rgb": {
    "r": 172,
    "g": 48,
    "b": 59
  },
  "hsl": {
    "h": 354.677,
    "s": 56.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.50171,
    "c": 0.15967,
    "h": 20.4
  },
  "luminance": 0.112
}

Semantic roles & 50–950 ramp

primary

#AC303B

secondary

#75C3BC

accent

#E0D248

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #AC303B

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

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