Color

#366fbf

#366fbf
hex#366fbf
rgbrgb(54, 111, 191)
hslhsl(215, 56%, 48%)
oklchoklch(0.544 0.139 257.4)
Closest name: Campanula (#3473b7)Relative luminance 0.1591

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#bf8636

#36b4bf · #4136bf

#bf366f · #6fbf36

Split-complementary

Open in tool →

#bf4136 · #b4bf36

#bf36b4 · #bf8636 · #36bf41

Contrast

#366fbf as textRatioAAAA largeAAAFix
Aaon white
5.02:1passpassfail
  • AAA: use #2b5897 as the text (7.13:1)
Aaon black
4.18:1failpassfail
  • AA: use #3c76c8 as the text (4.62:1)
  • AAA: use #6c98d5 as the text (7.09:1)
  • AA: or shift the background to #f5f5f5 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #366fbf 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

#366fbf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #366fbf
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #366fbf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/366fbf-9ca8c4-df5d4e-201f2d-e9f0f1?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