Color

#781b98

#781b98
hex#781b98
rgbrgb(120, 27, 152)
hslhsl(285, 70%, 35%)
oklchoklch(0.438 0.193 315.2)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0704

Colors that go with #781b98

Denim, Forest Green 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 →

#3a981b

#3a1b98 · #981b78

#98781b · #1b9878

Split-complementary

Open in tool →

#78981b · #1b983a

#983a1b · #3a981b · #1b7898

Contrast

#781b98 as textRatioAAAA largeAAAFix
Aaon white
8.72:1passpasspassPasses AAA — no fix needed.
Aaon black
2.41:1failfailfail
  • AA: use #b338dc as the text (4.52:1)
  • AAA: use #ca74e7 as the text (7.16:1)
  • AA: or shift the background to #bdbdbd (4.64:1)
  • AAA: or shift the background to #e8e8e8 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #781b98 as the background.

Brands using this color

Fonts for this mood

#781b98 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #781b98
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 #781b98 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/781b98-bc9fc1-afcb62-2d1f2b-ebe9f1?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