Color

#1642df

#1642df
hex#1642df
rgbrgb(22, 66, 223)
hslhsl(227, 82%, 48%)
oklchoklch(0.473 0.24 264.9)
Closest name: C64 Blue (#003aff)Relative luminance 0.0939

Colors that go with #1642df

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dfb316

#16a6df · #4f16df

#df1642 · #42df16

Split-complementary

Open in tool →

#df4f16 · #a6df16

#df16a6 · #dfb316 · #16df4f

Contrast

#1642df as textRatioAAAA largeAAAFix
Aaon white
7.29:1passpasspassPasses AAA — no fix needed.
Aaon black
2.88:1failfailfail
  • AA: use #456aed as the text (4.54:1)
  • AAA: use #7893f2 as the text (7.25:1)
  • AA: or shift the background to #cccccc (4.54:1)
  • AAA: or shift the background to #fcfcfc (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1642df as the background.

Brands using this color

Fonts for this mood

#1642df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1642df
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 #1642df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1642df-9ca0c4-df7a4e-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