#303B78 Color

#303B78 is rgb(48, 59, 120) in RGB and hsl(231, 43%, 33%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.

#303B78

HEX#303B78

RGBrgb(48, 59, 120)

HSLhsl(231, 43%, 33%)

HSVhsv(231, 60%, 47%)

OKLCHoklch(37.7% 0.104 272.8)

CMYKcmyk(60%, 51%, 0%, 53%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #303B78 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text10.38:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.02:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #303B78 based on color wheel relationships. Click any swatch for its full breakdown.

Base#303B78 Complementary#786D30 Analogous#305F78 Analogous#493078 Triadic#78303B Triadic#3B7830

Tints & Shades

Lighter tints and darker shades of #303B78, useful for hover states, backgrounds, and text variants.

Tints

#3D4B99 #5060B9 #717EC6 #929BD3 #B2B9E0 #D7DBEF

Shades

#2A346A #242D5B #1F254D #171D3A #11152C #0C0E1D

Use #303B78 in Our Tools

Hex to RGB Hex to HSL Hex to CMYK Hex to Pantone RGBA to Hex