Color

#6b66ea

#6b66ea
hex#6b66ea
rgbrgb(107, 102, 234)
hslhsl(242, 76%, 66%)
oklchoklch(0.586 0.193 280.3)
Closest name: mediumslateblue (#7b68ee)Relative luminance 0.1857

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e6ea66

#66a4ea · #ad66ea

#ea6b66 · #66ea6b

Split-complementary

Open in tool →

#eaad66 · #a4ea66

#ea66a4 · #e6ea66 · #66eaad

Contrast

#6b66ea as textRatioAAAA largeAAAFix
Aaon white
4.45:1failpassfail
  • AA: use #6662ea as the text (4.67:1)
  • AAA: use #3f3ae4 as the text (7.15:1)
  • AA: or shift the background to #050505 (4.57:1)
Aaon black
4.71:1passpassfail
  • AAA: use #8e8aef as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6b66ea as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#6b66ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6b66ea
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 #6b66ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6b66ea-a29cc4-df9e4e-261f2d-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