Color

#0511fa

#0511fa
hex#0511fa
rgbrgb(5, 17, 250)
hslhsl(237, 96%, 50%)
oklchoklch(0.452 0.304 264.5)
Closest name: blue (#0000ff)Relative luminance 0.0734

Tints & shades

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

Harmonies

Complementary

Open in tool →

#faee05

#058cfa · #7305fa

#fa0511 · #11fa05

Split-complementary

Open in tool →

#fa7305 · #8cfa05

#fa058c · #faee05 · #05fa73

Contrast

#0511fa as textRatioAAAA largeAAAFix
Aaon white
8.51:1passpasspassPasses AAA — no fix needed.
Aaon black
2.47:1failfailfail
  • AA: use #5a62fc as the text (4.59:1)
  • AAA: use #878dfd as the text (7.26:1)
  • AA: or shift the background to #bdbdbd (4.53:1)
  • AAA: or shift the background to #ebebeb (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0511fa as the background.

Brands using this color

Fonts for this mood

#0511fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0511fa
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 #0511fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0511fa-9f9cc4-df924e-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