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Running Number
5,723,499
HEX
#57556B
RGB
87, 85, 107
HSL
245°,11%,38%
HSV
245°,21%,42%
CMYK
19%,21%,0%,58%
Brightness
35%
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
#57556B sits at 245° on the color wheel, placing it in the blue family of the cool half of the spectrum. With 11% saturation and 38% lightness, it reads as a heavily muted, shadowed tone — a quiet, restrained presence that recedes rather than competes. Its RGB mix of 87, 85, 107 produces a 7.20:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.
In RGB space #57556B is a clear variant of CSS dim gray — about 27 units away from #696969. Designers reach for blue 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 #57556B in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#57556b";💡 Click any tab to see how to use #57556b in different programming languages