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Running Number
1,616,375
HEX
#18A9F7
RGB
24, 169, 247
HSL
201°,93%,53%
HSV
201°,90%,97%
CMYK
90%,32%,0%,3%
Brightness
53%
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
#18A9F7 sits at 201° on the color wheel, placing it in the azure family of the cool half of the spectrum. With 93% saturation and 53% lightness, it reads as a fully saturated, balanced tone — an immediate, signal-grade voice that demands attention. Its RGB mix of 24, 169, 247 produces a 8.06:1 contrast ratio against black, which clears WCAG AAA for body text in that pairing.
In RGB space #18A9F7 is a distant relative of CSS turquoise — about 78 units away from #40E0D0. 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 #18A9F7 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#18a9f7";💡 Click any tab to see how to use #18a9f7 in different programming languages