Color

#5756c8

#5756c8
hex#5756c8
rgbrgb(87, 86, 200)
hslhsl(241, 51%, 56%)
oklchoklch(0.518 0.173 278.9)
Closest name: slateblue (#6a5acd)Relative luminance 0.1285

Colors that go with #5756c8

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 →

#c6c856

#568dc8 · #9156c8

#c85756 · #56c857

Split-complementary

Open in tool →

#c89156 · #8dc856

#c8568d · #c6c856 · #56c891

Contrast

#5756c8 as textRatioAAAA largeAAAFix
Aaon white
5.88:1passpassfail
  • AAA: use #4846c3 as the text (7.14:1)
Aaon black
3.57:1failpassfail
  • AA: use #6b69ce as the text (4.54:1)
  • AAA: use #918fdb as the text (7.16:1)
  • AA: or shift the background to #e3e3e3 (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 #5756c8 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

#5756c8 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5756c8
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 #5756c8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5756c8-a19cc4-df9b4e-261f2d-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