#646B87 Color
#646B87 is rgb(100, 107, 135) in RGB and hsl(228, 15%, 46%) in HSL. The closest CSS named color is SlateGray. White text is most readable on this background.
#646B87
HEX
#646B87RGB
rgb(100, 107, 135)HSL
hsl(228, 15%, 46%)HSV
hsv(228, 26%, 53%)OKLCH
oklch(53.2% 0.045 273.8)CMYK
cmyk(26%, 21%, 0%, 47%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #646B87 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text5.26:1AA normal ✓AA large ✓AAA normal ✗
TextBlack text3.99:1AA normal ✗AA large ✓AAA normal ✗
Color Harmonies
Colors that pair well with #646B87 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #646B87, useful for hover states, backgrounds, and text variants.