Color

#0f357b

#0f357b
hex#0f357b
rgbrgb(15, 53, 123)
hslhsl(219, 78%, 27%)
oklchoklch(0.35 0.127 261.3)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0408

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7b550f

#0f6a7b · #1f0f7b

#7b0f35 · #357b0f

Split-complementary

Open in tool →

#7b1f0f · #6a7b0f

#7b0f6a · #7b550f · #0f7b1f

Contrast

#0f357b as textRatioAAAA largeAAAFix
Aaon white
11.57:1passpasspassPasses AAA — no fix needed.
Aaon black
1.82:1failfailfail
  • AA: use #3371e6 as the text (4.65:1)
  • AAA: use #6594ec as the text (7:1)
  • AA: or shift the background to #a3a3a3 (4.59:1)
  • AAA: or shift the background to #cccccc (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f357b 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

#0f357b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f357b
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 #0f357b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f357b-9ca5c4-df664e-211f2d-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