Color

#4a13aa

#4a13aa
hex#4a13aa
rgbrgb(74, 19, 170)
hslhsl(262, 80%, 37%)
oklchoklch(0.39 0.208 288.6)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0482

Colors that go with #4a13aa

Royal Blue, Cobalt Blue and Crimson 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 →

#72aa13

#1327aa · #9613aa

#aa4a13 · #13aa4a

Split-complementary

Open in tool →

#aa9613 · #27aa13

#aa1327 · #72aa13 · #13aa96

Contrast

#4a13aa as textRatioAAAA largeAAAFix
Aaon white
10.69:1passpasspassPasses AAA — no fix needed.
Aaon black
1.96:1failfailfail
  • AA: use #8d55ec as the text (4.64:1)
  • AAA: use #ab83f1 as the text (7.25:1)
  • AA: or shift the background to #ababab (4.65:1)
  • AAA: or shift the background to #d4d4d4 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4a13aa 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

#4a13aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4a13aa
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 #4a13aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4a13aa-af9cc4-dfce4e-2a1f2d-e9eaf1?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