Color

#19379a

#19379a
hex#19379a
rgbrgb(25, 55, 154)
hslhsl(226, 72%, 35%)
oklchoklch(0.386 0.165 265.7)
Closest name: Depths of Night (#2c319b)Relative luminance 0.0527

Colors that go with #19379a

Charcoal, Steel Blue and 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 →

#9a7c19

#19779a · #3b199a

#9a1937 · #379a19

Split-complementary

Open in tool →

#9a3b19 · #779a19

#9a1977 · #9a7c19 · #199a3b

Contrast

#19379a as textRatioAAAA largeAAAFix
Aaon white
10.22:1passpasspassPasses AAA — no fix needed.
Aaon black
2.05:1failfailfail
  • AA: use #4b6ee2 as the text (4.63:1)
  • AAA: use #7792e9 as the text (7.07:1)
  • AA: or shift the background to #adadad (4.55:1)
  • AAA: or shift the background to #d6d6d6 (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 #19379a as the background.

Brands using this color

Fonts for this mood

#19379a reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #19379a
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 #19379a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/19379a-9ca1c4-df774e-221f2d-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