Hex Color Code #001B81 — RGB & HSL Conversions
How to use the #001B81 color code in HTML & CSS?
To apply the hex color #001B81 in web design, set the color property inside your CSS stylesheet. For example, adding background-color: #001B81; will paint elements in this cool undertone shade. In modern CSS structures, you can configure it as a custom variable --color-hex: #001B81; or utilize it directly in Tailwind CSS via arbitrary utility values like bg-[#001B81].
What are the RGB and HSL conversion values for #001B81?
In the digital sRGB color space, the hex value #001B81 is converted to RGB values of Red: 0, Green: 27, and Blue: 129. When analyzed under the HSL model, its coordinates correspond to hue angle 227°, 100% saturation, and 25% lightness. This makes it visually a dark, rich color with a highly vivid, intense, and brilliant shade.
CMYK print code settings for #001B81
When converting #001B81 for CMYK printing, the color separation consists of 100% Cyan, 79% Magenta, 0% Yellow, and 49% key/black. In digital designs, blue coordinates like this are highly favored by technical and corporate platforms to foster user trust, stability, and clean readability.
HEX #001B81 Color Space Conversions
Click to copy formatContrast & Accessibility (WCAG 2.1) Check
White text readability test with #001B81
Small body copy preview
Black text readability test with #001B81
Small body copy preview
Complementary & Analogous Harmonies
Perfect matching color schemes for your designsShades & Tints Generator Matrix
Copy shade hex values instantlyDarker Shades (Adding Black)
Lighter Tints (Adding White)
CSS Custom Properties (Variables)
--color-hex: #001B81;
--color-rgb: rgb(0, 27, 129);
--color-hsl: hsl(227deg, 100%, 25%);