Color

#6c3bb5

#6c3bb5
hex#6c3bb5
rgbrgb(108, 59, 181)
hslhsl(264, 51%, 47%)
oklchoklch(0.479 0.183 297.4)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0965

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#84b53b

#3b47b5 · #a93bb5

#b56c3b · #3bb56c

Split-complementary

Open in tool →

#b5a93b · #47b53b

#b53b47 · #84b53b · #3bb5a9

Contrast

#6c3bb5 as textRatioAAAA largeAAAFix
Aaon white
7.17:1passpasspassPasses AAA — no fix needed.
Aaon black
2.93:1failfailfail
  • AA: use #8c61cc as the text (4.7:1)
  • AAA: use #a888d8 as the text (7.18:1)
  • AA: or shift the background to #cfcfcf (4.6:1)
  • AAA: or shift the background to #ffffff (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6c3bb5 as the background.

Brands using this color

Fonts for this mood

#6c3bb5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6c3bb5
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #6c3bb5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6c3bb5-b19cc4-dfd34e-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