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💡 Click on any color value below to copy it to clipboard
Running Number
671,608
HEX
#0A3F78
RGB
10, 63, 120
HSL
211°,85%,25%
HSV
211°,92%,47%
CMYK
92%,48%,0%,53%
Brightness
21%
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
#0A3F78 sits at 211° on the color wheel, placing it in the azure family of the cool half of the spectrum. With 85% saturation and 25% lightness, it reads as a fully saturated, shadowed tone — a weighted, dramatic presence with deep undertones. Its RGB mix of 10, 63, 120 produces a 10.53:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.
In RGB space #0A3F78 is a distant relative of CSS navy — about 64 units away from #000080. Designers reach for azure hues at this saturation when the brief calls for bold, immediate signal, and at this lightness when they want weight, depth, and grounded contrast. 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 #0A3F78 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#0a3f78";💡 Click any tab to see how to use #0a3f78 in different programming languages