Color

#19419f

#19419f
hex#19419f
rgbrgb(25, 65, 159)
hslhsl(222, 73%, 36%)
oklchoklch(0.41 0.159 263.5)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0649

Colors that go with #19419f

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 →

#9f7719

#19849f · #34199f

#9f1941 · #419f19

Split-complementary

Open in tool →

#9f3419 · #849f19

#9f1984 · #9f7719 · #199f34

Contrast

#19419f as textRatioAAAA largeAAAFix
Aaon white
9.14:1passpasspassPasses AAA — no fix needed.
Aaon black
2.3:1failfailfail
  • AA: use #3d6ee1 as the text (4.52:1)
  • AAA: use #7296e9 as the text (7.25:1)
  • AA: or shift the background to #b8b8b8 (4.61:1)
  • AAA: or shift the background to #e3e3e3 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #19419f as the background.

Brands using this color

Fonts for this mood

#19419f reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #19419f
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 #19419f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/19419f-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