#3388D8 Hex Color
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Fairly saturated and cool, #3388d8 is a clear medium blue with a crisp, slightly cyan undertone. Its controlled brightness supports trust and reliability in security, finance, healthcare, and technology interfaces. Use the hex code #3388d8 as a supporting brand color or bold accent; black text reaches about 5.7:1 contrast for readable small body copy.
Questions about #3388d8
What is #3388d8 in RGB, HSL and CMYK?
In RGB, #3388d8 is rgb(51, 136, 216), in HSL hsl(209, 68%, 52%) and in CMYK 76%, 37%, 0%, 15%.
How does #3388d8 read in a design?
#3388d8 reads cool and controlled because its medium lightness and fairly strong saturation create a clean blue with a slight cyan cast. That balance communicates reliability without the heaviness of navy, making it suitable for security, finance, and technology interfaces.
Is #3388d8 readable on white or black?
#3388d8 has a 3.71:1 contrast ratio on white and 5.65:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works only for large text (24px, or 18.5px bold) and on black it works for body text. Try other pairs in the contrast checker.