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Running Number
6,510,593
HEX
#635801
RGB
99, 88, 1
HSL
53°,98%,20%
HSV
53°,99%,39%
CMYK
0%,11%,99%,61%
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
#635801 sits at 53° on the color wheel, placing it in the yellow family of the warm half of the spectrum. With 98% saturation and 20% lightness, it reads as a fully saturated, deep tone — a weighted, dramatic presence with deep undertones. Its RGB mix of 99, 88, 1 produces a 7.17:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.
In RGB space #635801 is a clear variant of CSS olive — about 49 units away from #808000. Designers reach for yellow 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 warm cast tends to pair best with cool neutrals around 210°-230° to balance temperature.
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 #635801 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#635801";💡 Click any tab to see how to use #635801 in different programming languages