Color

#19409a

#19409a
hex#19409a
rgbrgb(25, 64, 154)
hslhsl(222, 72%, 35%)
oklchoklch(0.404 0.154 263.4)
Closest name: Cascade Twilight (#234893)Relative luminance 0.0621

Colors that go with #19409a

Charcoal, Sea Green 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 →

#9a7319

#19809a · #33199a

#9a1940 · #409a19

Split-complementary

Open in tool →

#9a3319 · #809a19

#9a1980 · #9a7319 · #199a33

Contrast

#19409a as textRatioAAAA largeAAAFix
Aaon white
9.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #3e6ee0 as the text (4.51:1)
  • AAA: use #7396e8 as the text (7.26:1)
  • AA: or shift the background to #b5b5b5 (4.57:1)
  • AAA: or shift the background to #e0e0e0 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #19409a as the background.

Brands using this color

Fonts for this mood

#19409a reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #19409a
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 #19409a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/19409a-9ca3c4-df6e4e-211f2d-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