Color

#3e1bbb

#3e1bbb
hex#3e1bbb
rgbrgb(62, 27, 187)
hslhsl(253, 75%, 42%)
oklchoklch(0.404 0.223 279.7)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.054

Colors that go with #3e1bbb

Charcoal, Steel Blue and Cornflower Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#99bb1b

#1b48bb · #8e1bbb

#bb3e1b · #1bbb3e

Split-complementary

Open in tool →

#bb8e1b · #48bb1b

#bb1b48 · #99bb1b · #1bbb8e

Contrast

#3e1bbb as textRatioAAAA largeAAAFix
Aaon white
10.1:1passpasspassPasses AAA — no fix needed.
Aaon black
2.08:1failfailfail
  • AA: use #7c5ee8 as the text (4.62:1)
  • AAA: use #9d87ee as the text (7.13:1)
  • AA: or shift the background to #adadad (4.5:1)
  • AAA: or shift the background to #d9d9d9 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3e1bbb 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

#3e1bbb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3e1bbb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #3e1bbb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e1bbb-a99cc4-dfb84e-281f2d-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