#0188C6 Hex Color
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Cerulean. #0188c6 is a mid-tone blue with restrained saturation, cool and steady rather than flashy. It reads trustworthy, which suits finance, healthcare, and tech branding. Use it as a dominant base or on large UI surfaces; black text clears WCAG AA on it at 5.3:1. It flatters warm accents like coral, which keeps its cool cast from turning flat. The hex code for cerulean is #0188c6.
Questions about #0188c6
What is #0188c6 in RGB, HSL and CMYK?
In RGB, #0188c6 is rgb(1, 136, 198), in HSL hsl(199, 99%, 39%) and in CMYK 99%, 31%, 0%, 22%.
What colors pair well with #0188c6?
Coral, amber, and warm sand tones balance the cool cast of #0188c6, while charcoal and navy build calmer, more corporate combinations. Let this blue take the dominant share and keep warm accents small.
Is #0188c6 readable on white or black?
#0188c6 has a 3.93:1 contrast ratio on white and 5.33:1 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.