Color

#6857b2

#6857b2
hex#6857b2
rgbrgb(104, 87, 178)
hslhsl(251, 37%, 52%)
oklchoklch(0.518 0.139 289.2)
Closest name: slateblue (#6a5acd)Relative luminance 0.1297

Colors that go with #6857b2

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 →

#a1b257

#5774b2 · #9557b2

#b26857 · #57b268

Split-complementary

Open in tool →

#b29557 · #74b257

#b25774 · #a1b257 · #57b295

Contrast

#6857b2 as textRatioAAAA largeAAAFix
Aaon white
5.84:1passpassfail
  • AAA: use #5a4aa1 as the text (7.17:1)
Aaon black
3.59:1failpassfail
  • AA: use #7869ba as the text (4.53:1)
  • AAA: use #9a8fcc as the text (7.17:1)
  • AA: or shift the background to #e3e3e3 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6857b2 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

#6857b2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6857b2
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 #6857b2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6857b2-a89cc4-dfb34e-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