Color

#57377b

#57377b
hex#57377b
rgbrgb(87, 55, 123)
hslhsl(268, 38%, 35%)
oklchoklch(0.408 0.113 303.5)
Closest name: Galactic Compass (#48357b)Relative luminance 0.0619

Colors that go with #57377b

Charcoal, Blue and Crimson 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 →

#5c7b37

#373a7b · #79377b

#7b5737 · #377b57

Split-complementary

Open in tool →

#7b7937 · #3a7b37

#7b373a · #5c7b37 · #377b79

Contrast

#57377b as textRatioAAAA largeAAAFix
Aaon white
9.38:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #8c64b9 as the text (4.64:1)
  • AAA: use #a98bcb as the text (7.24:1)
  • AA: or shift the background to #b5b5b5 (4.58:1)
  • AAA: or shift the background to #e0e0e0 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #57377b 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

#57377b reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #57377b
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 #57377b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/57377b-b39cc4-dfdc4e-2c1f2d-e9eaf1?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