Color

#648bdd

#648bdd
hex#648bdd
rgbrgb(100, 139, 221)
hslhsl(221, 64%, 63%)
oklchoklch(0.645 0.131 263.8)
Closest name: Blue Jay (#5588dd)Relative luminance 0.264

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ddb764

#64c7dd · #7a64dd

#dd648b · #8bdd64

Split-complementary

Open in tool →

#dd7a64 · #c7dd64

#dd64c7 · #ddb764 · #64dd7a

Contrast

#648bdd as textRatioAAAA largeAAAFix
Aaon white
3.34:1failpassfail
  • AA: use #4371d6 as the text (4.59:1)
  • AAA: use #2752b0 as the text (7.19:1)
  • AA: or shift the background to #262626 (4.52:1)
Aaon black
6.28:1passpassfail
  • AAA: use #7194e0 as the text (7.01:1)

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

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

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

tool url/palettes/new/648bdd-9ca4c4-df6b4e-211f2d-e9eff1?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