Color

#816cd5

#816cd5
hex#816cd5
rgbrgb(129, 108, 213)
hslhsl(252, 56%, 63%)
oklchoklch(0.6 0.155 290.1)
Closest name: mediumpurple (#9370db)Relative luminance 0.202

Colors that go with #816cd5

Charcoal, Amber and Blue 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 →

#c0d56c

#6c8cd5 · #b66cd5

#d5816c · #6cd581

Split-complementary

Open in tool →

#d5b66c · #8cd56c

#d56c8c · #c0d56c · #6cd5b6

Contrast

#816cd5 as textRatioAAAA largeAAAFix
Aaon white
4.17:1failpassfail
  • AA: use #7a64d3 as the text (4.57:1)
  • AAA: use #583cc8 as the text (7.25:1)
  • AA: or shift the background to #0f0f0f (4.6:1)
Aaon black
5.04:1passpassfail
  • AAA: use #9c8cde as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #816cd5 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

#816cd5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #816cd5
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 #816cd5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/816cd5-a99cc4-dfb64e-281f2d-e9ecf1?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