Color

#375bbe

#375bbe
hex#375bbe
rgbrgb(55, 91, 190)
hslhsl(224, 55%, 48%)
oklchoklch(0.501 0.161 265.8)
Closest name: Denim (#1560bd)Relative luminance 0.1201

Colors that go with #375bbe

Charcoal, Sea Green and Amber 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 →

#be9a37

#379ebe · #5637be

#be375b · #5bbe37

Split-complementary

Open in tool →

#be5637 · #9ebe37

#be379e · #be9a37 · #37be56

Contrast

#375bbe as textRatioAAAA largeAAAFix
Aaon white
6.17:1passpassfail
  • AAA: use #3253ae as the text (7.04:1)
Aaon black
3.4:1failpassfail
  • AA: use #5172cd as the text (4.64:1)
  • AAA: use #7d95d9 as the text (7.17:1)
  • AA: or shift the background to #dedede (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #375bbe as the background.

Brands using this color

Fonts for this mood

#375bbe reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #375bbe
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 #375bbe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/375bbe-9ca2c4-df724e-221f2d-e9eff1?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