Color

#372deb

#372deb
hex#372deb
rgbrgb(55, 45, 235)
hslhsl(243, 83%, 55%)
oklchoklch(0.471 0.265 271.9)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0869

Colors that go with #372deb

Charcoal, Cobalt Blue and Cornflower 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 →

#e2eb2d

#2d83eb · #962deb

#eb372d · #2deb37

Split-complementary

Open in tool →

#eb962d · #83eb2d

#eb2d83 · #e2eb2d · #2deb96

Contrast

#372deb as textRatioAAAA largeAAAFix
Aaon white
7.67:1passpasspassPasses AAA — no fix needed.
Aaon black
2.74:1failfailfail
  • AA: use #6860f0 as the text (4.52:1)
  • AAA: use #908af4 as the text (7.13:1)
  • AA: or shift the background to #c7c7c7 (4.54:1)
  • AAA: or shift the background to #f5f5f5 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #372deb as the background.

Brands using this color

Fonts for this mood

#372deb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #372deb
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 #372deb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/372deb-a39cc4-dfa04e-261f2d-e9edf1?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