Color

#1648df

#1648df
hex#1648df
rgbrgb(22, 72, 223)
hslhsl(225, 82%, 48%)
oklchoklch(0.483 0.234 264.4)
Closest name: C64 Blue (#003aff)Relative luminance 0.1013

Colors that go with #1648df

Charcoal, Amber and Cornflower Blue 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.

Real palettes that use #1648df

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dfad16

#16addf · #4816df

#df1648 · #48df16

Split-complementary

Open in tool →

#df4816 · #addf16

#df16ad · #dfad16 · #16df48

Contrast

#1648df as textRatioAAAA largeAAAFix
Aaon white
6.94:1passpassfail
  • AAA: use #1647da as the text (7.12:1)
Aaon black
3.03:1failpassfail
  • AA: use #416cec as the text (4.58:1)
  • AAA: use #7493f1 as the text (7.19:1)
  • AA: or shift the background to #d1d1d1 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1648df as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1648df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1648df
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 #1648df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1648df-9ca1c4-df754e-221f2d-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