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💡 Click on any color value below to copy it to clipboard
Running Number
801,487
HEX
#0C3ACF
RGB
12, 58, 207
HSL
226°,89%,43%
HSV
226°,94%,81%
CMYK
94%,72%,0%,19%
Brightness
24%
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
#0C3ACF sits at 226° on the color wheel, placing it in the blue family of the cool half of the spectrum. With 89% saturation and 43% lightness, it reads as a fully saturated, shadowed tone — an immediate, signal-grade voice that demands attention. Its RGB mix of 12, 58, 207 produces a 8.33:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.
In RGB space #0C3ACF is a distant relative of CSS royal blue — about 73 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 #0C3ACF in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#0c3acf";💡 Click any tab to see how to use #0c3acf in different programming languages