Color

#191f8a

#191f8a
hex#191f8a
rgbrgb(25, 31, 138)
hslhsl(237, 69%, 32%)
oklchoklch(0.327 0.171 269.9)
Closest name: Deepsea Kraken (#082599)Relative luminance 0.0302

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a8419

#19578a · #4c198a

#8a191f · #1f8a19

Split-complementary

Open in tool →

#8a4c19 · #578a19

#8a1957 · #8a8419 · #198a4c

Contrast

#191f8a as textRatioAAAA largeAAAFix
Aaon white
13.09:1passpasspassPasses AAA — no fix needed.
Aaon black
1.6:1failfailfail
  • AA: use #646ae3 as the text (4.71:1)
  • AAA: use #8b8fea as the text (7.21:1)
  • AA: or shift the background to #999999 (4.59:1)
  • AAA: or shift the background to #bfbfbf (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 #191f8a as the background.

Brands using this color

Fonts for this mood

#191f8a reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #191f8a
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 #191f8a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/191f8a-9f9cc4-df924e-251f2d-e9edf1?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