Color

#6658b6

#6658b6
hex#6658b6
rgbrgb(102, 88, 182)
hslhsl(249, 39%, 53%)
oklchoklch(0.521 0.143 287.2)
Closest name: slateblue (#6a5acd)Relative luminance 0.1318

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a8b658

#5879b6 · #9558b6

#b66658 · #58b666

Split-complementary

Open in tool →

#b69558 · #79b658

#b65879 · #a8b658 · #58b695

Contrast

#6658b6 as textRatioAAAA largeAAAFix
Aaon white
5.78:1passpassfail
  • AAA: use #5749a7 as the text (7.2:1)
Aaon black
3.64:1failpassfail
  • AA: use #776abe as the text (4.59:1)
  • AAA: use #978ecd as the text (7.07:1)
  • AA: or shift the background to #e6e6e6 (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6658b6 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

#6658b6 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6658b6
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 #6658b6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6658b6-a79cc4-dfae4e-271f2d-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