Color

#370655

#370655
hex#370655
rgbrgb(55, 6, 85)
hslhsl(277, 87%, 18%)
oklchoklch(0.269 0.128 307.2)
Closest name: Cotinga Purple (#340059)Relative luminance 0.016

Tints & shades

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

Harmonies

Complementary

Open in tool →

#255606

#0f0656 · #56064d

#563706 · #065637

Split-complementary

Open in tool →

#4d5606 · #06560f

#560f06 · #255606 · #064d56

Contrast

#370655 as textRatioAAAA largeAAAFix
Aaon white
15.91:1passpasspassPasses AAA — no fix needed.
Aaon black
1.32:1failfailfail
  • AA: use #aa37f1 as the text (4.53:1)
  • AAA: use #c475f5 as the text (7.21:1)
  • AA: or shift the background to #8a8a8a (4.61:1)
  • AAA: or shift the background to #adadad (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #370655 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

#370655 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #370655
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 #370655 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/370655-b99cc4-bdcb62-2d1f2c-eae9f1?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