Color

#685dbb

#685dbb
hex#685dbb
rgbrgb(104, 93, 187)
hslhsl(247, 41%, 55%)
oklchoklch(0.535 0.143 285.9)
Closest name: slateblue (#6a5acd)Relative luminance 0.1436

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b0bb5d

#5d81bb · #975dbb

#bb685d · #5dbb68

Split-complementary

Open in tool →

#bb975d · #81bb5d

#bb5d81 · #b0bb5d · #5dbb97

Contrast

#685dbb as textRatioAAAA largeAAAFix
Aaon white
5.42:1passpassfail
  • AAA: use #5448ad as the text (7.22:1)
Aaon black
3.87:1failpassfail
  • AA: use #766cc1 as the text (4.69:1)
  • AAA: use #9790d0 as the text (7.22:1)
  • AA: or shift the background to #ebebeb (4.55:1)

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

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/685dbb-a59cc4-dfaa4e-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