Color

#375fcd

#375fcd
hex#375fcd
rgbrgb(55, 95, 205)
hslhsl(224, 60%, 51%)
oklchoklch(0.52 0.177 265.5)
Closest name: God of Rain (#4466cc)Relative luminance 0.134

Colors that go with #375fcd

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 →

#cda537

#37aacd · #5a37cd

#cd375f · #5fcd37

Split-complementary

Open in tool →

#cd5a37 · #aacd37

#cd37aa · #cda537 · #37cd5a

Contrast

#375fcd as textRatioAAAA largeAAAFix
Aaon white
5.71:1passpassfail
  • AAA: use #2d51b4 as the text (7.12:1)
Aaon black
3.68:1failpassfail
  • AA: use #4b6fd2 as the text (4.5:1)
  • AAA: use #7893dd as the text (7.02:1)
  • AA: or shift the background to #e6e6e6 (4.57:1)

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

Brands using this color

Fonts for this mood

#375fcd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

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

tool url/palettes/new/375fcd-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