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Running Number
8,505,841
HEX
#81C9F1
RGB
129, 201, 241
HSL
201°,80%,73%
HSV
201°,46%,95%
CMYK
46%,17%,0%,5%
Brightness
72%
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
#81C9F1 sits at 201° on the color wheel, placing it in the azure family of the cool half of the spectrum. With 80% saturation and 73% lightness, it reads as a richly saturated, light tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 129, 201, 241 produces a 11.56:1 contrast ratio against black, which clears WCAG AAA for body text in that pairing.
In RGB space #81C9F1 is a close cousin of CSS sky blue — about 10 units away from #87CEEB. Designers reach for azure hues at this saturation when the brief calls for bold, immediate signal, and at this lightness when they want lift, air, and gentle emphasis. 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 #81C9F1 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#81c9f1";💡 Click any tab to see how to use #81c9f1 in different programming languages