Color

#0f13fa

#0f13fa
hex#0f13fa
rgbrgb(15, 19, 250)
hslhsl(239, 96%, 52%)
oklchoklch(0.454 0.302 265.2)
Closest name: blue (#0000ff)Relative luminance 0.0747

Tints & shades

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

Harmonies

Complementary

Open in tool →

#faf60f

#0f89fa · #810ffa

#fa0f13 · #13fa0f

Split-complementary

Open in tool →

#fa810f · #89fa0f

#fa0f89 · #faf60f · #0ffa81

Contrast

#0f13fa as textRatioAAAA largeAAAFix
Aaon white
8.42:1passpasspassPasses AAA — no fix needed.
Aaon black
2.49:1failfailfail
  • AA: use #5f62fc as the text (4.64:1)
  • AAA: use #8789fd as the text (7.03:1)
  • AA: or shift the background to #bfbfbf (4.58:1)
  • AAA: or shift the background to #ebebeb (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f13fa as the background.

Brands using this color

Fonts for this mood

#0f13fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f13fa
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 #0f13fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f13fa-a09cc4-df964e-251f2d-e9edf1?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