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Running Number
6,521,213
HEX
#63817D
RGB
99, 129, 125
HSL
172°,13%,45%
HSV
172°,23%,51%
CMYK
23%,0%,3%,49%
Brightness
47%
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
#63817D sits at 172° on the color wheel, placing it in the cyan family of the cool half of the spectrum. With 13% saturation and 45% lightness, it reads as a heavily muted, balanced tone — a quiet, restrained presence that recedes rather than competes. Its RGB mix of 99, 129, 125 produces a 4.97:1 contrast ratio against black, which clears WCAG AA for body text in that pairing.
In RGB space #63817D is a clear variant of CSS gray — about 29 units away from #808080. Designers reach for cyan 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 #63817D in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#63817d";💡 Click any tab to see how to use #63817d in different programming languages