Color

#370fae

#370fae
hex#370fae
rgbrgb(55, 15, 174)
hslhsl(255, 84%, 37%)
oklchoklch(0.374 0.217 279.3)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0421

Tints & shades

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

Harmonies

Complementary

Open in tool →

#86ae0f

#0f37ae · #860fae

#ae370f · #0fae37

Split-complementary

Open in tool →

#ae860f · #37ae0f

#ae0f37 · #86ae0f · #0fae86

Contrast

#370fae as textRatioAAAA largeAAAFix
Aaon white
11.4:1passpasspassPasses AAA — no fix needed.
Aaon black
1.84:1failfailfail
  • AA: use #805bf1 as the text (4.68:1)
  • AAA: use #a185f4 as the text (7.18:1)
  • AA: or shift the background to #a3a3a3 (4.52:1)
  • AAA: or shift the background to #cccccc (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #370fae 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

#370fae reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #370fae
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 #370fae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/370fae-ab9cc4-dfbd4e-291f2d-e9ebf1?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