Color

#575dcb

#575dcb
hex#575dcb
rgbrgb(87, 93, 203)
hslhsl(237, 53%, 57%)
oklchoklch(0.533 0.168 276.7)
Closest name: slateblue (#6a5acd)Relative luminance 0.1417

Colors that go with #575dcb

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 →

#cbc657

#5797cb · #8c57cb

#cb575d · #5dcb57

Split-complementary

Open in tool →

#cb8c57 · #97cb57

#cb5797 · #cbc657 · #57cb8c

Contrast

#575dcb as textRatioAAAA largeAAAFix
Aaon white
5.48:1passpassfail
  • AAA: use #4046c4 as the text (7.26:1)
Aaon black
3.83:1failpassfail
  • AA: use #676cd0 as the text (4.63:1)
  • AAA: use #8e92dc as the text (7.3:1)
  • AA: or shift the background to #ebebeb (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #575dcb 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

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

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

tool url/palettes/new/575dcb-9f9cc4-df924e-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