Color

#784ab5

#784ab5
hex#784ab5
rgbrgb(120, 74, 181)
hslhsl(266, 42%, 50%)
oklchoklch(0.514 0.164 300.6)
Closest name: slateblue (#6a5acd)Relative luminance 0.1223

Colors that go with #784ab5

Sea Green, Charcoal 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 →

#87b54a

#4a51b5 · #ae4ab5

#b5784a · #4ab578

Split-complementary

Open in tool →

#b5ae4a · #51b54a

#b54a51 · #87b54a · #4ab5ae

Contrast

#784ab5 as textRatioAAAA largeAAAFix
Aaon white
6.1:1passpassfail
  • AAA: use #6c43a3 as the text (7.07:1)
Aaon black
3.45:1failpassfail
  • AA: use #8b63bf as the text (4.63:1)
  • AAA: use #a688ce as the text (7.03:1)
  • AA: or shift the background to #dedede (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #784ab5 as the background.

Brands using this color

Fonts for this mood

#784ab5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #784ab5
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 #784ab5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/784ab5-b29cc4-dfd74e-2b1f2d-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