Color

#191d38

#191d38
hex#191d38
rgbrgb(25, 29, 56)
hslhsl(232, 38%, 16%)
oklchoklch(0.242 0.052 275.5)
Closest name: Nightwalker (#161d3b)Relative luminance 0.0137

Colors that go with #191d38

Charcoal, Dark Olive Green 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 →

#383419

#192d38 · #251938

#38191d · #1d3819

Split-complementary

Open in tool →

#382519 · #2d3819

#38192d · #383419 · #193825

Contrast

#191d38 as textRatioAAAA largeAAAFix
Aaon white
16.48:1passpasspassPasses AAA — no fix needed.
Aaon black
1.27:1failfailfail
  • AA: use #6470b9 as the text (4.56:1)
  • AAA: use #8b93cb as the text (7.13:1)
  • AA: or shift the background to #878787 (4.59:1)
  • AAA: or shift the background to #ababab (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #191d38 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#191d38 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #191d38
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 #191d38 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/191d38-9c9dc4-df864e-231f2d-e9eef1?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