Color

#190a4d

#190a4d
hex#190a4d
rgbrgb(25, 10, 77)
hslhsl(253, 77%, 17%)
oklchoklch(0.225 0.112 282.9)
Closest name: Deadly Depths (#111144)Relative luminance 0.0096

Colors that go with #190a4d

Charcoal, Denim and Sea Green 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 →

#3e4d0a

#0a1d4d · #3a0a4d

#4d180a · #0a4d18

Split-complementary

Open in tool →

#4d3a0a · #1d4d0a

#4d0a1d · #3e4d0a · #0a4d3a

Contrast

#190a4d as textRatioAAAA largeAAAFix
Aaon white
17.62:1passpasspassPasses AAA — no fix needed.
Aaon black
1.19:1failfailfail
  • AA: use #7b5dea as the text (4.6:1)
  • AAA: use #9c85ef as the text (7.01:1)
  • AA: or shift the background to #828282 (4.58:1)
  • AAA: or shift the background to #a6a6a6 (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #190a4d as the background.

Brands using this color

Fonts for this mood

#190a4d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #190a4d
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 #190a4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/190a4d-a99cc4-dfb84e-281f2d-e9ebf1?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