Color

#0f4366

#0f4366
hex#0f4366
rgbrgb(15, 67, 102)
hslhsl(204, 74%, 23%)
oklchoklch(0.368 0.08 243.5)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0508

Tints & shades

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

Harmonies

Complementary

Open in tool →

#66320f

#0f665d · #0f1866

#660f43 · #43660f

Split-complementary

Open in tool →

#660f18 · #665d0f

#5d0f66 · #66320f · #18660f

Contrast

#0f4366 as textRatioAAAA largeAAAFix
Aaon white
10.42:1passpasspassPasses AAA — no fix needed.
Aaon black
2.02:1failfailfail
  • AA: use #1c7bba as the text (4.59:1)
  • AAA: use #379de1 as the text (7.07:1)
  • AA: or shift the background to #ababab (4.54:1)
  • AAA: or shift the background to #d4d4d4 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f4366 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

#0f4366 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f4366
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 #0f4366 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f4366-9cafc4-df4e5a-1f222d-e9f1f0?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