Color

#19489f

#19489f
hex#19489f
rgbrgb(25, 72, 159)
hslhsl(219, 73%, 36%)
oklchoklch(0.425 0.151 261.4)
Closest name: Cascade Twilight (#234893)Relative luminance 0.0734

Colors that go with #19489f

Charcoal, Crimson and Steel 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 →

#9f7019

#198b9f · #2d199f

#9f1948 · #489f19

Split-complementary

Open in tool →

#9f2d19 · #8b9f19

#9f198b · #9f7019 · #199f2d

Contrast

#19489f as textRatioAAAA largeAAAFix
Aaon white
8.51:1passpasspassPasses AAA — no fix needed.
Aaon black
2.47:1failfailfail
  • AA: use #3470df as the text (4.53:1)
  • AAA: use #6995e8 as the text (7.06:1)
  • AA: or shift the background to #bdbdbd (4.53:1)
  • AAA: or shift the background to #ebebeb (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #19489f as the background.

Brands using this color

Fonts for this mood

#19489f reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #19489f
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 #19489f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/19489f-9ca5c4-df664e-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