Color

#5603fc

#5603fc
hex#5603fc
rgbrgb(86, 3, 252)
hslhsl(260, 98%, 50%)
oklchoklch(0.487 0.292 280.6)
Closest name: Electric Indigo (#6600ff)Relative luminance 0.0907

Colors that go with #5603fc

Charcoal, Denim and Cobalt 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 →

#a9fc03

#032cfc · #d303fc

#fc5603 · #03fc56

Split-complementary

Open in tool →

#fcd303 · #2cfc03

#fc032c · #a9fc03 · #03fcd3

Contrast

#5603fc as textRatioAAAA largeAAAFix
Aaon white
7.46:1passpasspassPasses AAA — no fix needed.
Aaon black
2.81:1failfailfail
  • AA: use #894efd as the text (4.57:1)
  • AAA: use #aa81fe as the text (7.28:1)
  • AA: or shift the background to #c9c9c9 (4.51:1)
  • AAA: or shift the background to #fafafa (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5603fc 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

#5603fc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5603fc
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 #5603fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5603fc-ae9cc4-dfc94e-2a1f2d-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