Color

#6565ec

#6565ec
hex#6565ec
rgbrgb(101, 101, 236)
hslhsl(240, 78%, 66%)
oklchoklch(0.581 0.198 278.3)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1813

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ecec65

#65a8ec · #a865ec

#ec6565 · #65ec65

Split-complementary

Open in tool →

#eca865 · #a8ec65

#ec65a8 · #ecec65 · #65eca8

Contrast

#6565ec as textRatioAAAA largeAAAFix
Aaon white
4.54:1passpassfail
  • AAA: use #3c3ce7 as the text (7.02:1)
Aaon black
4.63:1passpassfail
  • AAA: use #8e8ef1 as the text (7.29:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6565ec as the background.

Brands using this color

Fonts for this mood

#6565ec reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6565ec
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 #6565ec and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6565ec-a19cc4-df994e-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