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💡 Click on any color value below to copy it to clipboard
Running Number
4,147,008
HEX
#3F4740
RGB
63, 71, 64
HSL
127°,6%,26%
HSV
127°,11%,28%
CMYK
11%,0%,10%,72%
Brightness
27%
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
#3F4740 sits at 127° on the color wheel, placing it in the green family of the cool half of the spectrum. With 6% saturation and 26% lightness, it reads as a heavily muted, shadowed tone — a quiet, restrained presence that recedes rather than competes. Its RGB mix of 63, 71, 64 produces a 9.60:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.
In RGB space #3F4740 is a distant relative of CSS dim gray — about 68 units away from #696969. Designers reach for green hues at this saturation when the brief calls for restraint and atmosphere, and at this lightness when they want weight, depth, and grounded contrast. 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 #3F4740 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#3f4740";💡 Click any tab to see how to use #3f4740 in different programming languages