#647C87 Color
#647C87 is rgb(100, 124, 135) in RGB and hsl(199, 15%, 46%) in HSL. The closest CSS named color is SlateGray. Black text is most readable on this background.
#647C87
HEX
#647C87RGB
rgb(100, 124, 135)HSL
hsl(199, 15%, 46%)HSV
hsv(199, 26%, 53%)OKLCH
oklch(57.1% 0.033 227.5)CMYK
cmyk(26%, 8%, 0%, 47%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #647C87 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text4.4:1AA normal ✗AA large ✓AAA normal ✗
TextBlack text4.77:1AA normal ✓AA large ✓AAA normal ✗
Color Harmonies
Colors that pair well with #647C87 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #647C87, useful for hover states, backgrounds, and text variants.