Color

#57408c

#57408c
hex#57408c
rgbrgb(87, 64, 140)
hslhsl(258, 37%, 40%)
oklchoklch(0.435 0.122 294.8)
Closest name: darkslateblue (#483d8b)Relative luminance 0.0759

Colors that go with #57408c

Charcoal, Steel Blue and 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 →

#758c40

#404f8c · #7d408c

#8c5740 · #408c57

Split-complementary

Open in tool →

#8c7d40 · #4f8c40

#8c404f · #758c40 · #408c7d

Contrast

#57408c as textRatioAAAA largeAAAFix
Aaon white
8.34:1passpasspassPasses AAA — no fix needed.
Aaon black
2.52:1failfailfail
  • AA: use #8169ba as the text (4.66:1)
  • AAA: use #9e8cca as the text (7.06:1)
  • AA: or shift the background to #bfbfbf (4.54:1)
  • AAA: or shift the background to #ededed (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #57408c 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

#57408c reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #57408c
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 #57408c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/57408c-ad9cc4-dfc44e-291f2d-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