Color

#4d3196

#4d3196
hex#4d3196
rgbrgb(77, 49, 150)
hslhsl(257, 51%, 39%)
oklchoklch(0.407 0.157 290.5)
Closest name: darkslateblue (#483d8b)Relative luminance 0.0598

Colors that go with #4d3196

Royal Blue, Blue and Charcoal 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 →

#799631

#314796 · #803196

#964d31 · #31964d

Split-complementary

Open in tool →

#968031 · #479631

#963147 · #799631 · #319680

Contrast

#4d3196 as textRatioAAAA largeAAAFix
Aaon white
9.57:1passpasspassPasses AAA — no fix needed.
Aaon black
2.2:1failfailfail
  • AA: use #8265cd as the text (4.69:1)
  • AAA: use #a28bda as the text (7.24:1)
  • AA: or shift the background to #b3b3b3 (4.56:1)
  • AAA: or shift the background to #dedede (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4d3196 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

#4d3196 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4d3196
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 #4d3196 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4d3196-ac9cc4-dfc24e-291f2d-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