#3F4559 Hex Color
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#3f4559 is a dark, muted indigo with gray undertones, giving it a matte, slightly ashy appearance. Its low saturation creates a serious, mysterious mood suited to structured, spiritual, and reflective designs. Use it as a supporting tone or dark interface background, paired with warm ivory or muted burgundy. The hex code #3f4559 supports clear white text at about 9.5:1 contrast.
Questions about #3f4559
What is #3f4559 in RGB, HSL and CMYK?
In RGB, #3f4559 is rgb(63, 69, 89), in HSL hsl(226, 17%, 30%) and in CMYK 29%, 22%, 0%, 65%.
What colors pair well with #3f4559?
For a balanced palette, pair #3f4559 with warm ivory for contrast and muted burgundy for restrained warmth. Soft blue-gray or pale lavender can also extend its cool, reflective mood without making the design feel harsh.
Does #3f4559 read as warm or cool?
#3f4559 reads as a cool, muted indigo because its blue-violet base and gray undertones suppress warmth. Its low saturation keeps the effect restrained rather than vivid, making it suitable for serious, reflective layouts and calm dark surfaces.
Is #3f4559 readable on white or black?
#3f4559 has a 9.51:1 contrast ratio on white and 2.20:1 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.