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Running Number
6,721,339
HEX
#668F3B
RGB
102, 143, 59
HSL
89°,42%,40%
HSV
89°,59%,56%
CMYK
29%,0%,59%,44%
Brightness
48%
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
#668F3B sits at 89° on the color wheel, placing it in the chartreuse family of the neutral half of the spectrum. With 42% saturation and 40% 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 102, 143, 59 produces a 5.56:1 contrast ratio against black, which clears WCAG AA for body text in that pairing.
In RGB space #668F3B is a close cousin of CSS olive drab — about 25 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 #668F3B in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#668f3b";💡 Click any tab to see how to use #668f3b in different programming languages