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The hexadecimal color code #021731 is a very dark, intense shade of Blue (known as black). In the RGB color model, #021731 is comprised of 2 red, 23 green, and 49 blue. In the HSL color space, which is often used in digital design and color grading, it has a hue of 213 degrees, a saturation of 92%, and a lightness of 10%. This color has an approximate wavelength of 502 nm. The closest web-safe color is often utilized in web design, user interfaces (UI), and vector graphics to create intense Blue atmospheres. Designers searching for Blue color schemes often pair this with its complementary color or use it as an accent against neutral backgrounds. It is commonly used in digital design for backgrounds, typography, and accent elements. When paired with its complementary color in the palette below, it creates a high-contrast visual hierarchy. Engineers can implement this color using the CSS hex code #021731.