#64748B
Color Name
Slate Steel
rgb(100, 116, 139)•hsl(215, 16%, 47%)•Lum 0.171
HEX#64748B
RGBrgb(100, 116, 139)
HSLhsl(215, 16%, 47%)
HSVhsv(215, 28%, 55%)
CMYKcmyk(28%, 17%, 0%, 45%)
CSS Variable--color-primary: #64748B;
CSS Backgroundbackground-color: #64748B;
Color Harmonies
Classic color wheel theory relationships derived from #64748B. Click any swatch to explore.
Complementary (180°)
Analogous (-30° / +30°)
Triadic (120° / 240°)
Split Complementary (150° / 210°)
Monochromatic (Lightness & Saturation Progression)
Shades & Tints
Step-by-step luminance variations created by adding black (shades) or white (tints).
Shades (Mixing with Black)
#59677C
11% Dark#4E5A6C
22% Dark#434D5D
33% Dark#38404D
44% Dark#2C343E
56% Dark#21272E
67% Dark#161A1F
78% Dark#0B0D0F
89% DarkTints (Mixing with White)
#758398
11% Light#8693A5
22% Light#98A2B2
33% Light#A9B2BF
44% Light#BAC1CB
56% Light#CBD1D8
67% Light#DDE0E5
78% Light#EEF0F2
89% LightKeep Designing
Use #64748B Across Other Tools
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