Color

#1f366b

#1f366b
hex#1f366b
rgbrgb(31, 54, 107)
hslhsl(222, 55%, 27%)
oklchoklch(0.345 0.097 264.3)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0399

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6b541f

#1f5c6b · #2e1f6b

#6b1f36 · #366b1f

Split-complementary

Open in tool →

#6b2e1f · #5c6b1f

#6b1f5c · #6b541f · #1f6b2e

Contrast

#1f366b as textRatioAAAA largeAAAFix
Aaon white
11.68:1passpasspassPasses AAA — no fix needed.
Aaon black
1.8:1failfailfail
  • AA: use #4d73cb as the text (4.63:1)
  • AAA: use #7995d8 as the text (7.1:1)
  • AA: or shift the background to #a1a1a1 (4.52:1)
  • AAA: or shift the background to #c9c9c9 (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 #1f366b as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#1f366b reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f366b
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 #1f366b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f366b-9ca3c4-df6e4e-211f2d-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