#00A4B3 Hex Color
A cool unsaturated cyan with refreshing clarity

This cool, unsaturated cyan carries a refreshing clarity. Because #00a4b3 is distinct without being loud, it excels as a secondary accent color in modern tech interfaces or aerospace branding. It provides excellent contrast for black text, though it can feel overwhelming as a full background. If you need to soften the tone, learn what colors make gray to create better neutral pairings.
Questions about #00a4b3
What is #00a4b3 in RGB, HSL and CMYK?
In RGB, #00a4b3 is rgb(0, 164, 179), in HSL hsl(185, 100%, 35%) and in CMYK 100%, 8%, 0%, 30%.
Where should I use #00a4b3 in a design system?
#00a4b3 functions best as a secondary action color or a subtle graphic accent rather than a primary background. Its cool clarity provides high legibility against black text, making it a reliable choice for buttons or notification highlights.
Which neutral colors balance #00a4b3 effectively?
Pair #00a4b3 with a deep charcoal to create a sophisticated, high-contrast look that feels modern and industrial. If you need a softer appearance, combine it with a cool-toned light gray to maintain the color's natural, refreshing temperature.
Is #00a4b3 readable on white or black?
#00a4b3 has a 3.01:1 contrast ratio on white and 6.96:1 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.