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Running Number
2,764,908
HEX
#2A306C
RGB
42, 48, 108
HSL
235°,44%,29%
HSV
235°,61%,42%
CMYK
61%,56%,0%,58%
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
#2A306C sits at 235° on the color wheel, placing it in the blue family of the cool half of the spectrum. With 44% saturation and 29% lightness, it reads as a moderately saturated, shadowed tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 42, 48, 108 produces a 12.08:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.
In RGB space #2A306C is a distant relative of CSS #4B0082 — about 62 units away from #4B0082. 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 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 #2A306C in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#2a306c";💡 Click any tab to see how to use #2a306c in different programming languages