Color

#648fb4

#648fb4
hex#648fb4
rgbrgb(100, 143, 180)
hslhsl(208, 35%, 55%)
oklchoklch(0.633 0.073 245.3)
Closest name: Galactic Gossamer (#7f8cb8)Relative luminance 0.2565

Colors that go with #648fb4

Charcoal, Copper 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 →

#b48a64

#64b4b2 · #6467b4

#b4648f · #8fb464

Split-complementary

Open in tool →

#b46467 · #b4b264

#b264b4 · #b48a64 · #67b464

Contrast

#648fb4 as textRatioAAAA largeAAAFix
Aaon white
3.43:1failpassfail
  • AA: use #4c789e as the text (4.68:1)
  • AAA: use #3a5b78 as the text (7.12:1)
  • AA: or shift the background to #242424 (4.53:1)
Aaon black
6.13:1passpassfail
  • AAA: use #759bbd as the text (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #648fb4 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#648fb4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #648fb4
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 #648fb4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/648fb4-9cadc4-df4e51-1f212d-e9f1f1?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