Color

#648ddd

#648ddd
hex#648ddd
rgbrgb(100, 141, 221)
hslhsl(220, 64%, 63%)
oklchoklch(0.649 0.129 262.7)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2698

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ddb564

#64c9dd · #7864dd

#dd648d · #8ddd64

Split-complementary

Open in tool →

#dd7864 · #c9dd64

#dd64c9 · #ddb564 · #64dd78

Contrast

#648ddd as textRatioAAAA largeAAAFix
Aaon white
3.28:1failpassfail
  • AA: use #3f71d5 as the text (4.63:1)
  • AAA: use #2754b0 as the text (7.04:1)
  • AA: or shift the background to #262626 (4.61:1)
Aaon black
6.4:1passpassfail
  • AAA: use #7196e0 as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #648ddd 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

#648ddd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #648ddd
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 #648ddd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/648ddd-9ca5c4-df694e-211f2d-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