Blue
Online color picker to view shades, tints, color codes, and complementary colors
The hex code for blue is #0000ff. This color is a deep and intense shade of blue, and is sometimes referred to as electric or primary blue. It has a cool undertone and is perfect for making a bold statement. This versatile color can be used to create a range of looks, from modern and sophisticated to fun and playful. Learn more about what colors make blue.
Questions about Blue
What is the hex code for Blue?
Blue is #0000ff. In RGB that is rgb(0, 0, 255), in HSL hsl(240, 100%, 50%) and in CMYK 100%, 100%, 0%, 0%.
Is Blue readable on white or black?
Blue has a 8.59:1 contrast ratio on white and 2.44:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works for body text and on black it is too faint for text. Try other pairs in the contrast checker.