Color

#366ee7

#366ee7
hex#366ee7
rgbrgb(54, 110, 231)
hslhsl(221, 79%, 56%)
oklchoklch(0.57 0.193 263)
Closest name: Bluetiful (#3c69e7)Relative luminance 0.1771

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e7af36

#36c7e7 · #5736e7

#e7366e · #6ee736

Split-complementary

Open in tool →

#e75736 · #c7e736

#e736c7 · #e7af36 · #36e757

Contrast

#366ee7 as textRatioAAAA largeAAAFix
Aaon white
4.62:1passpassfail
  • AAA: use #174ec4 as the text (7.18:1)
Aaon black
4.54:1passpassfail
  • AAA: use #6d96ee as the text (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #366ee7 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

#366ee7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #366ee7
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 #366ee7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/366ee7-9ca4c4-df6b4e-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