Color

#0f1bbd

#0f1bbd
hex#0f1bbd
rgbrgb(15, 27, 189)
hslhsl(236, 85%, 40%)
oklchoklch(0.381 0.236 266)
Closest name: mediumblue (#0000cd)Relative luminance 0.0456

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bdb10f

#0f72bd · #5a0fbd

#bd0f1b · #1bbd0f

Split-complementary

Open in tool →

#bd5a0f · #72bd0f

#bd0f72 · #bdb10f · #0fbd5a

Contrast

#0f1bbd as textRatioAAAA largeAAAFix
Aaon white
10.98:1passpasspassPasses AAA — no fix needed.
Aaon black
1.91:1failfailfail
  • AA: use #5a64f2 as the text (4.54:1)
  • AAA: use #848cf5 as the text (7.05:1)
  • AA: or shift the background to #a6a6a6 (4.51:1)
  • AAA: or shift the background to #cfcfcf (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 #0f1bbd 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

#0f1bbd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f1bbd
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 #0f1bbd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f1bbd-9e9cc4-df8f4e-241f2d-e9eef1?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