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Running Number
4,234,858
HEX
#409E6A
RGB
64, 158, 106
HSL
147°,42%,44%
HSV
147°,59%,62%
CMYK
59%,0%,33%,38%
Brightness
49%
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
#409E6A sits at 147° on the color wheel, placing it in the spring green family of the cool half of the spectrum. With 42% saturation and 44% 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 64, 158, 106 produces a 6.32:1 contrast ratio against black, which clears WCAG AA for body text in that pairing.
In RGB space #409E6A is a clear variant of CSS sea green — about 32 units away from #2E8B57. Designers reach for spring green 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 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 #409E6A in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#409e6a";💡 Click any tab to see how to use #409e6a in different programming languages