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💡 Click on any color value below to copy it to clipboard
Running Number
6,520,692
HEX
#637F74
RGB
99, 127, 116
HSL
156°,12%,44%
HSV
156°,22%,50%
CMYK
22%,0%,9%,50%
Brightness
46%
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
#637F74 sits at 156° on the color wheel, placing it in the spring green family of the cool half of the spectrum. With 12% saturation and 44% lightness, it reads as a heavily muted, shadowed tone — a quiet, restrained presence that recedes rather than competes. Its RGB mix of 99, 127, 116 produces a 4.82:1 contrast ratio against black, which clears WCAG AA for body text in that pairing.
In RGB space #637F74 is a clear variant of CSS dim gray — about 25 units away from #696969. Designers reach for spring green 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 #637F74 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#637f74";💡 Click any tab to see how to use #637f74 in different programming languages