Color

#5e57bc

#5e57bc
hex#5e57bc
rgbrgb(94, 87, 188)
hslhsl(244, 43%, 54%)
oklchoklch(0.516 0.154 282.7)
Closest name: slateblue (#6a5acd)Relative luminance 0.1283

Colors that go with #5e57bc

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 →

#b5bc57

#5783bc · #9057bc

#bc5e57 · #57bc5e

Split-complementary

Open in tool →

#bc9057 · #83bc57

#bc5783 · #b5bc57 · #57bc90

Contrast

#5e57bc as textRatioAAAA largeAAAFix
Aaon white
5.89:1passpassfail
  • AAA: use #5049b6 as the text (7.07:1)
Aaon black
3.57:1failpassfail
  • AA: use #736dc5 as the text (4.72:1)
  • AAA: use #928ed2 as the text (7.02:1)
  • AA: or shift the background to #e3e3e3 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5e57bc 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

#5e57bc reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5e57bc
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 #5e57bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5e57bc-a39cc4-dfa24e-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