Color

#375bc8

#375bc8
hex#375bc8
rgbrgb(55, 91, 200)
hslhsl(225, 57%, 50%)
oklchoklch(0.509 0.175 266.4)
Closest name: Denim (#1560bd)Relative luminance 0.1246

Colors that go with #375bc8

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 →

#c8a437

#37a4c8 · #5b37c8

#c8375b · #5bc837

Split-complementary

Open in tool →

#c85b37 · #a4c837

#c837a4 · #c8a437 · #37c85b

Contrast

#375bc8 as textRatioAAAA largeAAAFix
Aaon white
6.01:1passpassfail
  • AAA: use #3152b4 as the text (7.01:1)
Aaon black
3.49:1failpassfail
  • AA: use #4f6fcf as the text (4.51:1)
  • AAA: use #7b93db as the text (7.04:1)
  • AA: or shift the background to #e0e0e0 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #375bc8 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

#375bc8 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #375bc8
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 #375bc8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/375bc8-9ca1c4-df754e-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