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Running Number
5,991,664
HEX
#5B6CF0
RGB
91, 108, 240
HSL
233°,83%,65%
HSV
233°,62%,94%
CMYK
62%,55%,0%,6%
Brightness
46%
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
#5B6CF0 sits at 233° on the color wheel, placing it in the blue family of the cool half of the spectrum. With 83% saturation and 65% lightness, it reads as a richly saturated, light tone — an immediate, signal-grade voice that demands attention. Its RGB mix of 91, 108, 240 produces a 4.85:1 contrast ratio against black, which clears WCAG AA for body text in that pairing.
In RGB space #5B6CF0 is a clear variant of CSS royal blue — about 30 units away from #4169E1. Designers reach for blue 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 #5B6CF0 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#5b6cf0";💡 Click any tab to see how to use #5b6cf0 in different programming languages