#429CCC Hex Color
Dependable Blue, Softened by Gray
Buttons and links in finance or healthcare apps often reach for a blue like this. #429ccc, known as Boston blue, is a medium blue with gray undertones that reads steady rather than flashy. Its muted saturation works well as a UI accent or supporting tone, and black text sits comfortably on top at about 6.9:1 contrast.
Questions about #429ccc
What is #429ccc in RGB, HSL and CMYK?
In RGB, #429ccc is rgb(66, 156, 204), in HSL hsl(201, 58%, 53%) and in CMYK 68%, 24%, 0%, 20%.
What colors pair well with #429ccc?
Warm sand and muted coral give #429ccc a gentle contrast, while charcoal grounds it for interface work. Skip pure white backgrounds, where this blue can look washed out. Light beige and navy are safer companions.
Can black text be used on #429ccc?
Yes. Black text on #429ccc reaches about 6.9:1 contrast, which clears the WCAG AA threshold of 4.5:1 for body text. That makes it a workable background for small labels, badges, and buttons.
Is #429ccc readable on white or black?
#429ccc has a 3.06:1 contrast ratio on white and 6.85:1 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.