Color

#7851cd

#7851cd
hex#7851cd
rgbrgb(120, 81, 205)
hslhsl(259, 55%, 56%)
oklchoklch(0.542 0.183 293.9)
Closest name: slateblue (#6a5acd)Relative luminance 0.1429

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#a5cd51

#5168cd · #b651cd

#cd7851 · #51cd78

Split-complementary

Open in tool →

#cdb651 · #68cd51

#cd5168 · #a5cd51 · #51cdb6

Contrast

#7851cd as textRatioAAAA largeAAAFix
Aaon white
5.44:1passpassfail
  • AAA: use #6639c6 as the text (7.08:1)
Aaon black
3.86:1failpassfail
  • AA: use #8461d1 as the text (4.61:1)
  • AAA: use #a388dd as the text (7.12:1)
  • AA: or shift the background to #ebebeb (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #7851cd 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

#7851cd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #7851cd
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #7851cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/7851cd-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