Color

#7c57cb

#7c57cb
hex#7c57cb
rgbrgb(124, 87, 203)
hslhsl(259, 53%, 57%)
oklchoklch(0.553 0.173 294.8)
Closest name: slateblue (#6a5acd)Relative luminance 0.1541

Colors that go with #7c57cb

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 →

#a7cb57

#576dcb · #b657cb

#cb7c57 · #57cb7c

Split-complementary

Open in tool →

#cbb657 · #6dcb57

#cb576d · #a7cb57 · #57cbb6

Contrast

#7c57cb as textRatioAAAA largeAAAFix
Aaon white
5.14:1passpassfail
  • AAA: use #653bbf as the text (7.16:1)
Aaon black
4.08:1failpassfail
  • AA: use #8563cf as the text (4.68:1)
  • AAA: use #a48adb as the text (7.24:1)
  • AA: or shift the background to #f0f0f0 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #7c57cb 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

#7c57cb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #7c57cb
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 #7c57cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/7c57cb-ad9cc4-dfc74e-2a1f2d-e9ebf1?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