Color

#1966eb

#1966eb
hex#1966eb
rgbrgb(25, 102, 235)
hslhsl(218, 84%, 51%)
oklchoklch(0.549 0.214 261)
Closest name: Bluetiful (#3c69e7)Relative luminance 0.1571

Colors that go with #1966eb

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 →

#eb9e19

#19cfeb · #3519eb

#eb1966 · #66eb19

Split-complementary

Open in tool →

#eb3519 · #cfeb19

#eb19cf · #eb9e19 · #19eb35

Contrast

#1966eb as textRatioAAAA largeAAAFix
Aaon white
5.07:1passpassfail
  • AAA: use #1151c0 as the text (7.09:1)
Aaon black
4.14:1failpassfail
  • AA: use #276fec as the text (4.57:1)
  • AAA: use #5f95f1 as the text (7.06:1)
  • AA: or shift the background to #f2f2f2 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1966eb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1966eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1966eb
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 #1966eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1966eb-9ca6c4-df644e-201f2d-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