Color

#6558da

#6558da
hex#6558da
rgbrgb(101, 88, 218)
hslhsl(246, 64%, 60%)
oklchoklch(0.546 0.191 282.5)
Closest name: slateblue (#6a5acd)Relative luminance 0.1481

Colors that go with #6558da

Medium Sea Green, Slate Gray and Olive Green 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.

Real palettes that use #6558da

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cdda58

#588cda · #a658da

#da6558 · #58da65

Split-complementary

Open in tool →

#daa658 · #8cda58

#da588c · #cdda58 · #58daa6

Contrast

#6558da as textRatioAAAA largeAAAFix
Aaon white
5.3:1passpassfail
  • AAA: use #4e3fd5 as the text (7.01:1)
Aaon black
3.96:1failpassfail
  • AA: use #7064dd as the text (4.56:1)
  • AAA: use #938ae5 as the text (7.01:1)
  • AA: or shift the background to #ededed (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 #6558da 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

#6558da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6558da
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 #6558da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6558da-a59cc4-dfa74e-271f2d-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