#3F51AB Color

#3F51AB is rgb(63, 81, 171) in RGB and hsl(230, 46%, 46%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.

#3F51AB

HEX#3F51AB

RGBrgb(63, 81, 171)

HSLhsl(230, 46%, 46%)

HSVhsv(230, 63%, 67%)

OKLCHoklch(47.1% 0.145 271.3)

CMYKcmyk(63%, 53%, 0%, 33%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #3F51AB background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text7.06:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.98:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #3F51AB based on color wheel relationships. Click any swatch for its full breakdown.

Base#3F51AB Complementary#AB993F Analogous#3F87AB Analogous#633FAB Triadic#AB3F51 Triadic#51AB3F

Tints & Shades

Lighter tints and darker shades of #3F51AB, useful for hover states, backgrounds, and text variants.

Tints

#5062BE #6E7DC9 #8894D3 #A6AFDE #C0C6E8 #DDE1F3

Shades

#374795 #2F3C7F #273268 #1E2752 #161C3C #0E1225

Use #3F51AB in Our Tools

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