Color

#1659df

#1659df
hex#1659df
rgbrgb(22, 89, 223)
hslhsl(220, 82%, 48%)
oklchoklch(0.513 0.214 262.2)
Closest name: Bluetiful (#3c69e7)Relative luminance 0.1264

Colors that go with #1659df

Charcoal, Crimson 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 →

#df9c16

#16bddf · #3716df

#df1659 · #59df16

Split-complementary

Open in tool →

#df3716 · #bddf16

#df16bd · #df9c16 · #16df37

Contrast

#1659df as textRatioAAAA largeAAAFix
Aaon white
5.95:1passpassfail
  • AAA: use #134ec3 as the text (7.23:1)
Aaon black
3.53:1failpassfail
  • AA: use #3370eb as the text (4.66:1)
  • AAA: use #6694f0 as the text (7.06:1)
  • AA: or shift the background to #e0e0e0 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1659df as the background.

Brands using this color

Fonts for this mood

#1659df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1659df
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 #1659df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1659df-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