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💡 Click on any color value below to copy it to clipboard
Running Number
1,605,371
HEX
#187EFB
RGB
24, 126, 251
HSL
213°,97%,54%
HSV
213°,90%,98%
CMYK
90%,50%,0%,2%
Brightness
43%
Type
Dark
AA Normal Text: ≥ 4.5:1
AA Large Text: ≥ 3.0:1
AAA Normal Text: ≥ 7.0:1
AAA Large Text: ≥ 4.5:1
#187EFB sits at 213° on the color wheel, placing it in the azure family of the cool half of the spectrum. With 97% saturation and 54% lightness, it reads as a fully saturated, balanced tone — an immediate, signal-grade voice that demands attention. Its RGB mix of 24, 126, 251 produces a 5.42:1 contrast ratio against black, which clears WCAG AA for body text in that pairing.
In RGB space #187EFB is a clear variant of CSS royal blue — about 53 units away from #4169E1. Designers reach for azure 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 cool cast tends to pair best with warm neutrals in the 25°-45° range to add life.
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 #187EFB in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#187efb";💡 Click any tab to see how to use #187efb in different programming languages