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💡 Click on any color value below to copy it to clipboard
Running Number
16,119,097
HEX
#F5F539
RGB
245, 245, 57
HSL
60°,90%,59%
HSV
60°,77%,96%
CMYK
0%,0%,77%,4%
Brightness
88%
Type
Light
AA Normal Text: ≥ 4.5:1
AA Large Text: ≥ 3.0:1
AAA Normal Text: ≥ 7.0:1
AAA Large Text: ≥ 4.5:1
#F5F539 sits at 60° on the color wheel, placing it in the yellow family of the warm half of the spectrum. With 90% saturation and 59% lightness, it reads as a fully saturated, light tone — an immediate, signal-grade voice that demands attention. Its RGB mix of 245, 245, 57 produces a 18.00:1 contrast ratio against black, which clears WCAG AAA for body text in that pairing.
In RGB space #F5F539 is a clear variant of CSS yellow — about 59 units away from #FFFF00. Designers reach for yellow hues at this saturation when the brief calls for bold, immediate signal, and at this lightness when they want a present, comfortable mid-canvas voice. On screen the warm cast tends to pair best with cool neutrals around 210°-230° to balance temperature.
See how this color appears in real UI elements
Button (filled)
Badge
Progress Bar
Link Hover
Input Focus Ring
Checkbox Active
Toggle Switch On
Slider Thumb
Card Border
Icon Highlight
Tooltip Background
Modal Header
Tab Active
Alert Box
Timeline Dot
Loading Spinner
Dropdown Selected
Table Row Highlight
Calendar Date
Mobile Device
See how to use #F5F539 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#f5f539";💡 Click any tab to see how to use #f5f539 in different programming languages