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Aluminium

#ACAFB9

Aluminium is a cool light color with the hex code #ACAFB9. This muted hue can be represented as RGB 172, 175, 185 in digital design or CMYK 7%, 5%, 0%, 27% for print applications. Find matching Pantone color.

Aluminium color values

HEX
#ACAFB9
RGB
172, 175, 185
HSL
226°, 8%, 70%
CMYK
7, 5, 0, 27

Shades & tints

Darker Lighter

About this color

Aluminium sits at 226° on the color wheel with 8% saturation and 70% lightness, placing it in the blue segment of the spectrum. At near-zero saturation, it reads as a pure gray, with hue playing almost no role in its character. At medium-high lightness, it holds its own on white backgrounds while remaining approachable.

In digital environments, Aluminium is rendered as rgb(172, 175, 185), where the blue channel is highest at 185, though it sits close to the other channels. Muted saturation at high lightness is a classic formula for soft background fills, placeholder states, and secondary surface colors in light-mode interfaces.

For print, Aluminium translates to a CMYK breakdown of 7C 5M 0Y 27K. With a moderate key (27%), this color uses black to deepen the chromatic channels rather than replace them, a profile that typically holds up well in both offset and digital print. No brands in the brandkit.pro library currently specify this exact hex as a named brand color.

Color harmonies

Complementary

Split-Complementary

How to use Aluminium

CSS Variable 

:root {
  --brand-primary: #ACAFB9;
  --brand-primary-rgb: 172, 175, 185;
}

Define as a CSS custom property for consistent theming across your site.

Tailwind Config 

colors: {
  brand: '#ACAFB9',
}

Add to your Tailwind config to use classes like bg-brand.

Print Design (CMYK) 

C: 7%
M: 5%
Y: 0%
K: 27%

Use these CMYK values in Adobe Illustrator, InDesign, or print specifications.

RGB for Screens 

rgb(172, 175, 185)
rgba(172, 175, 185, 0.8)

Use RGB notation for compatibility or add alpha channel for transparency.

Frequently asked questions

What color is #ACAFB9?
#ACAFB9 is Aluminium, a cool light color with RGB values of 172, 175, 185. It has a hue of 226°, 8% saturation, and 70% lightness in the HSL color space.
What is the RGB value of #ACAFB9?
The RGB color code for #ACAFB9 is rgb(172, 175, 185). This means it contains 172 red, 175 green, and 185 blue in the RGB color model.
Is Aluminium a warm or cool color?
Aluminium (#ACAFB9) is a cool color with a hue between 120-300° on the color wheel.
How do I use #ACAFB9 in CSS?
You can use #ACAFB9 in CSS with: background-color: #ACAFB9; or color: #ACAFB9; or as an RGB value: rgb(172, 175, 185). For print design, use CMYK: 7%, 5%, 0%, 27%.

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