Color

#3f0fc2

#3f0fc2
hex#3f0fc2
rgbrgb(63, 15, 194)
hslhsl(256, 86%, 41%)
oklchoklch(0.405 0.236 279.7)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0529

Tints & shades

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

Harmonies

Complementary

Open in tool →

#93c20f

#0f39c2 · #990fc2

#c23f0f · #0fc23f

Split-complementary

Open in tool →

#c2990f · #39c20f

#c20f39 · #93c20f · #0fc299

Contrast

#3f0fc2 as textRatioAAAA largeAAAFix
Aaon white
10.2:1passpasspassPasses AAA — no fix needed.
Aaon black
2.06:1failfailfail
  • AA: use #8259f3 as the text (4.67:1)
  • AAA: use #a284f6 as the text (7.17:1)
  • AA: or shift the background to #adadad (4.55:1)
  • AAA: or shift the background to #d6d6d6 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f0fc2 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

#3f0fc2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f0fc2
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 #3f0fc2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f0fc2-ab9cc4-dfbf4e-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