Color

#781fa8

#781fa8
hex#781fa8
rgbrgb(120, 31, 168)
hslhsl(279, 69%, 39%)
oklchoklch(0.454 0.203 309.8)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.078

Colors that go with #781fa8

Olive Drab, Teal and Sea Green 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 →

#4fa81f

#331fa8 · #a81f93

#a8781f · #1fa878

Split-complementary

Open in tool →

#93a81f · #1fa833

#a8331f · #4fa81f · #1f93a8

Contrast

#781fa8 as textRatioAAAA largeAAAFix
Aaon white
8.2:1passpasspassPasses AAA — no fix needed.
Aaon black
2.56:1failfailfail
  • AA: use #a846dd as the text (4.59:1)
  • AAA: use #c079e6 as the text (7.12:1)
  • AA: or shift the background to #c2c2c2 (4.61:1)
  • AAA: or shift the background to #ededed (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 #781fa8 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

#781fa8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #781fa8
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 #781fa8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/781fa8-b99fc1-b9cb62-2d1f2c-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