Color

#783aa1

#783aa1
hex#783aa1
rgbrgb(120, 58, 161)
hslhsl(276, 47%, 43%)
oklchoklch(0.477 0.164 309.2)
Closest name: rebeccapurple (#663399)Relative luminance 0.0959

Colors that go with #783aa1

Sea Green, Crimson and Denim 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 →

#63a13a

#443aa1 · #a13a97

#a1783a · #3aa178

Split-complementary

Open in tool →

#97a13a · #3aa144

#a1443a · #63a13a · #3a97a1

Contrast

#783aa1 as textRatioAAAA largeAAAFix
Aaon white
7.2:1passpasspassPasses AAA — no fix needed.
Aaon black
2.92:1failfailfail
  • AA: use #995ac4 as the text (4.61:1)
  • AAA: use #b383d2 as the text (7.09:1)
  • AA: or shift the background to #cfcfcf (4.62:1)
  • AAA: or shift the background to #fcfcfc (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #783aa1 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

#783aa1 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #783aa1
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 #783aa1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/783aa1-b99cc4-bfcb62-2d1f2d-eae9f1?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