Color

#6653b2

#6653b2
hex#6653b2
rgbrgb(102, 83, 178)
hslhsl(252, 38%, 51%)
oklchoklch(0.509 0.145 289.4)
Closest name: slateblue (#6a5acd)Relative luminance 0.1223

Colors that go with #6653b2

Charcoal, Sea Green and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9fb253

#536fb2 · #9553b2

#b26653 · #53b266

Split-complementary

Open in tool →

#b29553 · #6fb253

#b2536f · #9fb253 · #53b295

Contrast

#6653b2 as textRatioAAAA largeAAAFix
Aaon white
6.1:1passpassfail
  • AAA: use #5d4aa5 as the text (7.03:1)
Aaon black
3.45:1failpassfail
  • AA: use #7b6bbd as the text (4.68:1)
  • AAA: use #9b8ecc as the text (7.13:1)
  • AA: or shift the background to #dedede (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6653b2 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

#6653b2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6653b2
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #6653b2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6653b2-a99cc4-dfb64e-281f2d-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