Color

#375dbe

#375dbe
hex#375dbe
rgbrgb(55, 93, 190)
hslhsl(223, 55%, 48%)
oklchoklch(0.505 0.159 265.1)
Closest name: Denim (#1560bd)Relative luminance 0.1236

Colors that go with #375dbe

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 →

#be9837

#37a1be · #5437be

#be375d · #5dbe37

Split-complementary

Open in tool →

#be5437 · #a1be37

#be37a1 · #be9837 · #37be54

Contrast

#375dbe as textRatioAAAA largeAAAFix
Aaon white
6.05:1passpassfail
  • AAA: use #3154aa as the text (7.05:1)
Aaon black
3.47:1failpassfail
  • AA: use #4d71cb as the text (4.54:1)
  • AAA: use #7994d8 as the text (7.04:1)
  • AA: or shift the background to #e0e0e0 (4.58:1)

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

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/375dbe-9ca3c4-df704e-211f2d-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