#303C6E Color
#303C6E is rgb(48, 60, 110) in RGB and hsl(228, 39%, 31%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.
#303C6E
HEX
#303C6ERGB
rgb(48, 60, 110)HSL
hsl(228, 39%, 31%)HSV
hsv(228, 56%, 43%)OKLCH
oklch(37.2% 0.087 271.5)CMYK
cmyk(56%, 45%, 0%, 57%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #303C6E background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text10.51:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text2:1AA normal ✗AA large ✗AAA normal ✗
Color Harmonies
Colors that pair well with #303C6E based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #303C6E, useful for hover states, backgrounds, and text variants.