Hex Color Code #66AAAA — RGB & HSL Conversions
How to use the #66AAAA color code in HTML & CSS?
To apply the hex color #66AAAA in web design, set the color property inside your CSS stylesheet. For example, adding background-color: #66AAAA; will paint elements in this cool undertone shade. In modern CSS structures, you can configure it as a custom variable --color-hex: #66AAAA; or utilize it directly in Tailwind CSS via arbitrary utility values like bg-[#66AAAA].
What are the RGB and HSL conversion values for #66AAAA?
In the digital sRGB color space, the hex value #66AAAA is converted to RGB values of Red: 102, Green: 170, and Blue: 170. When analyzed under the HSL model, its coordinates correspond to hue angle 180°, 29% saturation, and 53% lightness. This makes it visually a balanced medium tone with a soft, understated pastel shade.
CMYK print code settings for #66AAAA
When converting #66AAAA for CMYK printing, the color separation consists of 40% Cyan, 0% Magenta, 0% Yellow, and 33% key/black. These neutral color boundaries serve as solid structural backgrounds, layouts, and typography grids.
HEX #66AAAA Color Space Conversions
Click to copy formatContrast & Accessibility (WCAG 2.1) Check
White text readability test with #66AAAA
Small body copy preview
Black text readability test with #66AAAA
Small body copy preview
Complementary & Analogous Harmonies
Computed dynamicallyShades & Tints Generator Matrix
Copy shade hex values instantlyDarker Shades (Adding Black)
Lighter Tints (Adding White)
CSS Custom Properties (Variables)
--color-hex: #66AAAA;
--color-rgb: rgb(102, 170, 170);
--color-hsl: hsl(180deg, 29%, 53%);