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💡 Click on any color value below to copy it to clipboard
Running Number
6,524,835
HEX
#638FA3
RGB
99, 143, 163
HSL
199°,26%,51%
HSV
199°,39%,64%
CMYK
39%,12%,0%,36%
Brightness
52%
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
#638FA3 sits at 199° on the color wheel, placing it in the azure family of the cool half of the spectrum. With 26% saturation and 51% lightness, it reads as a softly muted, balanced tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 99, 143, 163 produces a 5.99:1 contrast ratio against black, which clears WCAG AA for body text in that pairing.
In RGB space #638FA3 is a clear variant of CSS steel blue — about 36 units away from #4682B4. Designers reach for azure hues at this saturation when the brief calls for restraint and atmosphere, 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 #638FA3 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#638fa3";💡 Click any tab to see how to use #638fa3 in different programming languages