Color

#0f3e7b

#0f3e7b
hex#0f3e7b
rgbrgb(15, 62, 123)
hslhsl(214, 78%, 27%)
oklchoklch(0.371 0.115 257.1)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0498

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7b4c0f

#0f737b · #160f7b

#7b0f3e · #3e7b0f

Split-complementary

Open in tool →

#7b160f · #737b0f

#7b0f73 · #7b4c0f · #0f7b16

Contrast

#0f3e7b as textRatioAAAA largeAAAFix
Aaon white
10.52:1passpasspassPasses AAA — no fix needed.
Aaon black
2:1failfailfail
  • AA: use #1c72e3 as the text (4.57:1)
  • AAA: use #5797ea as the text (7.02:1)
  • AA: or shift the background to #ababab (4.58:1)
  • AAA: or shift the background to #d4d4d4 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f3e7b 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

#0f3e7b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f3e7b
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 #0f3e7b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f3e7b-9ca9c4-df5a4e-1f1f2d-e9f0f1?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