#EFDA37 Hex Color
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Bright as a fresh highlighter streak, #efda37 is a glowing yellow with strong saturation and real warmth. Its energy suits sale banners, price tags, and construction signage. Keep it as an accent rather than a full background, since it shouts at scale. Black text on this hex code passes contrast checks easily, so labels stay readable.
Questions about #efda37
What is #efda37 in RGB, HSL and CMYK?
In RGB, #efda37 is rgb(239, 218, 55), in HSL hsl(53, 85%, 58%) and in CMYK 0%, 9%, 77%, 6%.
What text color works best on #efda37?
Black text on #efda37 reaches about 14.8:1 contrast, well past the 4.5:1 needed for WCAG AA body text. White text falls far short, so skip it.
Which colors pair well with #efda37?
Pair #efda37 with charcoal or deep navy to calm its brightness, since both dark tones give it a grounded base. A touch of plum adds richness without competing.
Is #efda37 readable on white or black?
#efda37 has a 1.42:1 contrast ratio on white and 14.75:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it is too faint for text and on black it works for body text. Try other pairs in the contrast checker.