#42578A Color
#42578A is rgb(66, 87, 138) in RGB and hsl(223, 35%, 40%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.
#42578A
HEX
#42578ARGB
rgb(66, 87, 138)HSL
hsl(223, 35%, 40%)HSV
hsv(223, 52%, 54%)OKLCH
oklch(46.4% 0.087 266.1)CMYK
cmyk(52%, 37%, 0%, 46%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #42578A background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text7.09:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text2.96:1AA normal ✗AA large ✗AAA normal ✗
Color Harmonies
Colors that pair well with #42578A based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #42578A, useful for hover states, backgrounds, and text variants.