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💡 Click on any color value below to copy it to clipboard
Running Number
681,641
HEX
#0A66A9
RGB
10, 102, 169
HSL
205°,89%,35%
HSV
205°,94%,66%
CMYK
94%,40%,0%,34%
Brightness
32%
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
#0A66A9 sits at 205° on the color wheel, placing it in the azure family of the cool half of the spectrum. With 89% saturation and 35% lightness, it reads as a fully saturated, shadowed tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 10, 102, 169 produces a 6.02:1 contrast ratio against white, which clears WCAG AA for body text in that pairing.
In RGB space #0A66A9 is a clear variant of CSS teal — about 50 units away from #008080. Designers reach for azure 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 #0A66A9 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#0a66a9";💡 Click any tab to see how to use #0a66a9 in different programming languages