Color

#6d57bc

#6d57bc
hex#6d57bc
rgbrgb(109, 87, 188)
hslhsl(253, 43%, 54%)
oklchoklch(0.529 0.153 290.2)
Closest name: slateblue (#6a5acd)Relative luminance 0.137

Colors that go with #6d57bc

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 →

#a6bc57

#5774bc · #a057bc

#bc6d57 · #57bc6d

Split-complementary

Open in tool →

#bca057 · #74bc57

#bc5774 · #a6bc57 · #57bca0

Contrast

#6d57bc as textRatioAAAA largeAAAFix
Aaon white
5.62:1passpassfail
  • AAA: use #5d46af as the text (7.09:1)
Aaon black
3.74:1failpassfail
  • AA: use #7a66c2 as the text (4.51:1)
  • AAA: use #9d8ed2 as the text (7.23:1)
  • AA: or shift the background to #e8e8e8 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6d57bc 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

#6d57bc reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6d57bc
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 #6d57bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6d57bc-a99cc4-dfb84e-281f2d-e9ebf1?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