#0311D3 Color
#0311D3 is rgb(3, 17, 211) in RGB and hsl(236, 97%, 42%) in HSL. The closest CSS named color is MediumBlue. White text is most readable on this background.
#0311D3
HEX
#0311D3RGB
rgb(3, 17, 211)HSL
hsl(236, 97%, 42%)HSV
hsv(236, 99%, 83%)OKLCH
oklch(40% 0.266 264.5)CMYK
cmyk(99%, 92%, 0%, 17%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #0311D3 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text10.37:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text2.02:1AA normal ✗AA large ✗AAA normal ✗
Color Harmonies
Colors that pair well with #0311D3 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #0311D3, useful for hover states, backgrounds, and text variants.