Color

#3b35bb

#3b35bb
hex#3b35bb
rgbrgb(59, 53, 187)
hslhsl(243, 56%, 47%)
oklchoklch(0.432 0.201 275.9)
Closest name: Blurple (#5539cc)Relative luminance 0.0706

Colors that go with #3b35bb

Charcoal, Sea Green and Steel 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.

Real palettes that use #3b35bb

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b4bb35

#3571bb · #7f35bb

#bb3b35 · #35bb3b

Split-complementary

Open in tool →

#bb7f35 · #71bb35

#bb3571 · #b4bb35 · #35bb7f

Contrast

#3b35bb as textRatioAAAA largeAAAFix
Aaon white
8.7:1passpasspassPasses AAA — no fix needed.
Aaon black
2.41:1failfailfail
  • AA: use #6d68d4 as the text (4.58:1)
  • AAA: use #9490e0 as the text (7.32:1)
  • AA: or shift the background to #bdbdbd (4.63:1)
  • AAA: or shift the background to #e8e8e8 (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 #3b35bb 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

#3b35bb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3b35bb
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 #3b35bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b35bb-a39cc4-dfa04e-261f2d-e9edf1?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