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Running Number
10,905,265
HEX
#A666B1
RGB
166, 102, 177
HSL
291°,32%,55%
HSV
291°,42%,69%
CMYK
6%,42%,0%,31%
Brightness
51%
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
#A666B1 sits at 291° on the color wheel, placing it in the magenta family of the neutral half of the spectrum. With 32% saturation and 55% lightness, it reads as a softly muted, light tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 166, 102, 177 produces a 5.16:1 contrast ratio against black, which clears WCAG AA for body text in that pairing.
In RGB space #A666B1 is a clear variant of CSS rosy brown — about 58 units away from #BC8F8F. Designers reach for magenta 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 balanced cast tends to pair best with either warm or cool accents depending on the surrounding palette.
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 #A666B1 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#a666b1";💡 Click any tab to see how to use #a666b1 in different programming languages