Color

#685cb7

#685cb7
hex#685cb7
rgbrgb(104, 92, 183)
hslhsl(248, 39%, 54%)
oklchoklch(0.531 0.139 286.7)
Closest name: slateblue (#6a5acd)Relative luminance 0.1402

Tints & shades

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

Harmonies

Complementary

Open in tool →

#abb75c

#5c7eb7 · #965cb7

#b7685c · #5cb768

Split-complementary

Open in tool →

#b7965c · #7eb75c

#b75c7e · #abb75c · #5cb796

Contrast

#685cb7 as textRatioAAAA largeAAAFix
Aaon white
5.52:1passpassfail
  • AAA: use #574baa as the text (7.02:1)
Aaon black
3.8:1failpassfail
  • AA: use #756abe as the text (4.56:1)
  • AAA: use #968ecd as the text (7.05:1)
  • AA: or shift the background to #e8e8e8 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #685cb7 as the background.

Brands using this color

Fonts for this mood

#685cb7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #685cb7
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 #685cb7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/685cb7-a69cc4-dfac4e-271f2d-e9ecf1?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