Color

#575bc1

#575bc1
hex#575bc1
rgbrgb(87, 91, 193)
hslhsl(238, 46%, 55%)
oklchoklch(0.522 0.156 277.8)
Closest name: slateblue (#6a5acd)Relative luminance 0.1336

Colors that go with #575bc1

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 →

#c1be57

#5790c1 · #8957c1

#c1575b · #5bc157

Split-complementary

Open in tool →

#c18957 · #90c157

#c15790 · #c1be57 · #57c189

Contrast

#575bc1 as textRatioAAAA largeAAAFix
Aaon white
5.72:1passpassfail
  • AAA: use #4549ba as the text (7.2:1)
Aaon black
3.67:1failpassfail
  • AA: use #6a6dc8 as the text (4.63:1)
  • AAA: use #8f92d6 as the text (7.25:1)
  • AA: or shift the background to #e6e6e6 (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 #575bc1 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

#575bc1 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #575bc1
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 #575bc1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/575bc1-9f9cc4-df944e-251f2d-e9edf1?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