Color

#19459f

#19459f
hex#19459f
rgbrgb(25, 69, 159)
hslhsl(220, 73%, 36%)
oklchoklch(0.419 0.154 262.3)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0697

Colors that go with #19459f

Charcoal, Steel Blue 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 →

#9f7219

#19889f · #2f199f

#9f1945 · #459f19

Split-complementary

Open in tool →

#9f2f19 · #889f19

#9f1988 · #9f7219 · #199f2f

Contrast

#19459f as textRatioAAAA largeAAAFix
Aaon white
8.77:1passpasspassPasses AAA — no fix needed.
Aaon black
2.39:1failfailfail
  • AA: use #3870e0 as the text (4.56:1)
  • AAA: use #6d96e8 as the text (7.18:1)
  • AA: or shift the background to #bababa (4.52:1)
  • AAA: or shift the background to #e6e6e6 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #19459f as the background.

Brands using this color

Fonts for this mood

#19459f reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #19459f
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 #19459f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/19459f-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