Color

#6a58bb

#6a58bb
hex#6a58bb
rgbrgb(106, 88, 187)
hslhsl(251, 42%, 54%)
oklchoklch(0.528 0.15 288.5)
Closest name: slateblue (#6a5acd)Relative luminance 0.1363

Colors that go with #6a58bb

Charcoal, Sea Green and Cobalt Blue 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 →

#a9bb58

#5878bb · #9c58bb

#bb6a58 · #58bb6a

Split-complementary

Open in tool →

#bb9c58 · #78bb58

#bb5878 · #a9bb58 · #58bb9c

Contrast

#6a58bb as textRatioAAAA largeAAAFix
Aaon white
5.64:1passpassfail
  • AAA: use #5a47ae as the text (7.13:1)
Aaon black
3.73:1failpassfail
  • AA: use #7b6bc2 as the text (4.72:1)
  • AAA: use #9b8fd1 as the text (7.24:1)
  • AA: or shift the background to #e6e6e6 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6a58bb as the background.

Brands using this color

Fonts for this mood

#6a58bb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6a58bb
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 #6a58bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6a58bb-a89cc4-dfb34e-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