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Running Number
9,566,452
HEX
#91F8F4
RGB
145, 248, 244
HSL
178°,88%,77%
HSV
178°,42%,97%
CMYK
42%,0%,2%,3%
Brightness
85%
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
#91F8F4 sits at 178° on the color wheel, placing it in the cyan family of the cool half of the spectrum. With 88% saturation and 77% lightness, it reads as a fully saturated, very light tone — a soft but unmistakably tinted presence. Its RGB mix of 145, 248, 244 produces a 16.94:1 contrast ratio against black, which clears WCAG AAA for body text in that pairing.
In RGB space #91F8F4 is a clear variant of CSS sky blue — about 44 units away from #87CEEB. Designers reach for cyan 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 #91F8F4 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#91f8f4";💡 Click any tab to see how to use #91f8f4 in different programming languages