#664BFB Color
#664BFB is rgb(102, 75, 251) in RGB and hsl(249, 96%, 64%) in HSL. The closest CSS named color is MediumSlateBlue. White text is most readable on this background.
#664BFB
HEX
#664BFBRGB
rgb(102, 75, 251)HSL
hsl(249, 96%, 64%)HSV
hsv(249, 70%, 98%)OKLCH
oklch(55.4% 0.247 281.7)CMYK
cmyk(59%, 70%, 0%, 2%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #664BFB background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text5.3:1AA normal ✓AA large ✓AAA normal ✗
TextBlack text3.96:1AA normal ✗AA large ✓AAA normal ✗
Color Harmonies
Colors that pair well with #664BFB based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #664BFB, useful for hover states, backgrounds, and text variants.