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💡 Click on any color value below to copy it to clipboard
Running Number
5,662,403
HEX
#5666C3
RGB
86, 102, 195
HSL
231°,48%,55%
HSV
231°,56%,76%
CMYK
56%,48%,0%,24%
Brightness
42%
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
#5666C3 sits at 231° on the color wheel, placing it in the blue family of the cool half of the spectrum. With 48% saturation and 55% lightness, it reads as a moderately saturated, light tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 86, 102, 195 produces a 5.14:1 contrast ratio against white, which clears WCAG AA for body text in that pairing.
In RGB space #5666C3 is a clear variant of CSS slate blue — about 25 units away from #6A5ACD. Designers reach for blue hues at this saturation when the brief calls for a conversational, mid-energy register, 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 #5666C3 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#5666c3";💡 Click any tab to see how to use #5666c3 in different programming languages