Color

#647eaa

#647eaa
hex#647eaa
rgbrgb(100, 126, 170)
hslhsl(218, 29%, 53%)
oklchoklch(0.591 0.074 260.7)
Closest name: Bay View (#6a819e)Relative luminance 0.2053

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aa9064

#64a1aa · #6e64aa

#aa647e · #7eaa64

Split-complementary

Open in tool →

#aa6e64 · #a1aa64

#aa64a1 · #aa9064 · #64aa6e

Contrast

#647eaa as textRatioAAAA largeAAAFix
Aaon white
4.11:1failpassfail
  • AA: use #5b76a4 as the text (4.59:1)
  • AAA: use #45597d as the text (7.05:1)
  • AA: or shift the background to #121212 (4.56:1)
Aaon black
5.11:1passpassfail
  • AAA: use #8297ba as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #647eaa as the background.

Brands using this color

mcpConnect your agent — build around #647eaa
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 #647eaa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/647eaa-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