#378CB3 Color

#378CB3 is rgb(55, 140, 179) in RGB and hsl(199, 53%, 46%) in HSL. The closest CSS named color is SteelBlue. Black text is most readable on this background.

#378CB3

HEX#378CB3

RGBrgb(55, 140, 179)

HSLhsl(199, 53%, 46%)

HSVhsv(199, 69%, 70%)

OKLCHoklch(60.6% 0.1 231.7)

CMYKcmyk(69%, 22%, 0%, 30%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #378CB3 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text3.77:1AA normal ✗AA large ✓AAA normal ✗

TextBlack text5.56:1AA normal ✓AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #378CB3 based on color wheel relationships. Click any swatch for its full breakdown.

Base#378CB3 Complementary#B35F37 Analogous#37B39D Analogous#374EB3 Triadic#B3378C Triadic#8CB337

Tints & Shades

Lighter tints and darker shades of #378CB3, useful for hover states, backgrounds, and text variants.

Tints

#489EC7 #67AFD0 #82BDD9 #A1CEE2 #BDDCEB #DCEDF4

Shades

#307A9C #296885 #22556D #1A4356 #13313E #0C1E27

Use #378CB3 in Our Tools

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