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Running Number
6,527,305
HEX
#639949
RGB
99, 153, 73
HSL
100°,35%,44%
HSV
100°,52%,60%
CMYK
35%,0%,52%,40%
Brightness
50%
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
#639949 sits at 100° on the color wheel, placing it in the chartreuse family of the neutral half of the spectrum. With 35% saturation and 44% lightness, it reads as a softly muted, shadowed tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 99, 153, 73 produces a 6.18:1 contrast ratio against black, which clears WCAG AA for body text in that pairing.
In RGB space #639949 is a clear variant of CSS olive drab — about 40 units away from #6B8E23. Designers reach for chartreuse hues at this saturation when the brief calls for a conversational, mid-energy register, and at this lightness when they want a present, comfortable mid-canvas voice. On screen the balanced cast tends to pair best with either warm or cool accents depending on the surrounding palette.
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 #639949 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#639949";💡 Click any tab to see how to use #639949 in different programming languages