Color

#3f35d0

#3f35d0
hex#3f35d0
rgbrgb(63, 53, 208)
hslhsl(244, 62%, 51%)
oklchoklch(0.456 0.226 275.5)
Closest name: Blurple (#5539cc)Relative luminance 0.0816

Colors that go with #3f35d0

Charcoal, Sea Green and Amber 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 →

#c5d035

#3578d0 · #8c35d0

#d03f35 · #35d03f

Split-complementary

Open in tool →

#d08c35 · #78d035

#d03578 · #c5d035 · #35d08c

Contrast

#3f35d0 as textRatioAAAA largeAAAFix
Aaon white
7.98:1passpasspassPasses AAA — no fix needed.
Aaon black
2.63:1failfailfail
  • AA: use #6e66db as the text (4.59:1)
  • AAA: use #918be4 as the text (7.02:1)
  • AA: or shift the background to #c4c4c4 (4.58:1)
  • AAA: or shift the background to #f0f0f0 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f35d0 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

#3f35d0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f35d0
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 #3f35d0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f35d0-a39cc4-dfa24e-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