Color

#4c12ca

#4c12ca
hex#4c12ca
rgbrgb(76, 18, 202)
hslhsl(259, 84%, 43%)
oklchoklch(0.427 0.241 283.5)
Closest name: Busty Blue (#3300cc)Relative luminance 0.0623

Colors that go with #4c12ca

Charcoal, Royal Blue 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 →

#8fca12

#1233ca · #a812ca

#ca4c12 · #12ca4c

Split-complementary

Open in tool →

#caa812 · #33ca12

#ca1233 · #8fca12 · #12caa8

Contrast

#4c12ca as textRatioAAAA largeAAAFix
Aaon white
9.35:1passpasspassPasses AAA — no fix needed.
Aaon black
2.25:1failfailfail
  • AA: use #8756f0 as the text (4.62:1)
  • AAA: use #a885f4 as the text (7.33:1)
  • AA: or shift the background to #b5b5b5 (4.56:1)
  • AAA: or shift the background to #e0e0e0 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4c12ca 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

#4c12ca reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4c12ca
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 #4c12ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4c12ca-ad9cc4-dfc74e-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