Color

#374ebe

#374ebe
hex#374ebe
rgbrgb(55, 78, 190)
hslhsl(230, 55%, 48%)
oklchoklch(0.475 0.177 269.5)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0998

Colors that go with #374ebe

Charcoal, Sea Green and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#bea737

#3791be · #6437be

#be374e · #4ebe37

Split-complementary

Open in tool →

#be6437 · #91be37

#be3791 · #bea737 · #37be64

Contrast

#374ebe as textRatioAAAA largeAAAFix
Aaon white
7.01:1passpasspassPasses AAA — no fix needed.
Aaon black
3:1failfailfail
  • AA: use #596dcf as the text (4.51:1)
  • AAA: use #8493db as the text (7.18:1)
  • AA: or shift the background to #d1d1d1 (4.59:1)
  • AAA: or shift the background to #ffffff (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #374ebe as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#374ebe reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #374ebe
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #374ebe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/374ebe-9c9ec4-df814e-231f2d-e9eef1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md