Color

#6166ff

#6166ff
hex#6166ff
rgbrgb(97, 102, 255)
hslhsl(238, 100%, 69%)
oklchoklch(0.595 0.222 275.9)
Closest name: mediumslateblue (#7b68ee)Relative luminance 0.1926

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fffa61

#61b5ff · #ab61ff

#ff6166 · #66ff61

Split-complementary

Open in tool →

#ffab61 · #b5ff61

#ff61b5 · #fffa61 · #61ffab

Contrast

#6166ff as textRatioAAAA largeAAAFix
Aaon white
4.33:1failpassfail
  • AA: use #5c61ff as the text (4.56:1)
  • AAA: use #2930ff as the text (7.09:1)
  • AA: or shift the background to #0a0a0a (4.58:1)
Aaon black
4.85:1passpassfail
  • AAA: use #8589ff as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6166ff as the background.

Brands using this color

Fonts for this mood

#6166ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6166ff
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 #6166ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6166ff-9f9cc4-df944e-251f2d-e9edf1?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