Color

#6863cf

#6863cf
hex#6863cf
rgbrgb(104, 99, 207)
hslhsl(243, 53%, 60%)
oklchoklch(0.559 0.162 281.9)
Closest name: slateblue (#6a5acd)Relative luminance 0.1637

Colors that go with #6863cf

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 →

#cacf63

#6394cf · #9e63cf

#cf6863 · #63cf68

Split-complementary

Open in tool →

#cf9e63 · #94cf63

#cf6394 · #cacf63 · #63cf9e

Contrast

#6863cf as textRatioAAAA largeAAAFix
Aaon white
4.91:1passpassfail
  • AAA: use #4a44c5 as the text (7.18:1)
Aaon black
4.27:1failpassfail
  • AA: use #706bd1 as the text (4.71:1)
  • AAA: use #928edc as the text (7.12:1)
  • AA: or shift the background to #f5f5f5 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6863cf 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

#6863cf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6863cf
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 #6863cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6863cf-a39cc4-dfa04e-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