Color

#818da2

#818da2
hex#818da2
rgbrgb(129, 141, 162)
hslhsl(218, 15%, 57%)
oklchoklch(0.641 0.034 261.7)
Closest name: lightslategray (#778899)Relative luminance 0.2633

Colors that go with #818da2

Charcoal, Copper and Denim 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.

Real palettes that use #818da2

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a29681

#819da2 · #8581a2

#a2818d · #8da281

Split-complementary

Open in tool →

#a28581 · #9da281

#a2819d · #a29681 · #81a285

Contrast

#818da2 as textRatioAAAA largeAAAFix
Aaon white
3.35:1failpassfail
  • AA: use #68768d as the text (4.6:1)
  • AAA: use #4e586a as the text (7.17:1)
  • AA: or shift the background to #262626 (4.51:1)
Aaon black
6.27:1passpassfail
  • AAA: use #8d98aa as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #818da2 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #818da2
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 #818da2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/818da2-9ca6c4-df644e-201f2d-e9f0f1?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