Color

#191f39

#191f39
hex#191f39
rgbrgb(25, 31, 57)
hslhsl(229, 39%, 16%)
oklchoklch(0.248 0.05 272.4)
Closest name: Nightwalker (#161d3b)Relative luminance 0.0148

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#393319

#192f39 · #231939

#39191f · #1f3919

Split-complementary

Open in tool →

#392319 · #2f3919

#39192f · #393319 · #193923

Contrast

#191f39 as textRatioAAAA largeAAAFix
Aaon white
16.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.3:1failfailfail
  • AA: use #5f70b9 as the text (4.5:1)
  • AAA: use #8693ca as the text (7.04:1)
  • AA: or shift the background to #878787 (4.51:1)
  • AAA: or shift the background to #ababab (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #191f39 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#191f39 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #191f39
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #191f39 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/191f39-9c9fc4-df7e4e-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