Color

#0512ff

#0512ff
hex#0512ff
rgbrgb(5, 18, 255)
hslhsl(237, 100%, 51%)
oklchoklch(0.459 0.308 264.5)
Closest name: blue (#0000ff)Relative luminance 0.0768

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fff305

#058fff · #7605ff

#ff0512 · #12ff05

Split-complementary

Open in tool →

#ff7605 · #8fff05

#ff058f · #fff305 · #05ff76

Contrast

#0512ff as textRatioAAAA largeAAAFix
Aaon white
8.28:1passpasspassPasses AAA — no fix needed.
Aaon black
2.54:1failfailfail
  • AA: use #5c64ff as the text (4.72:1)
  • AAA: use #858bff as the text (7.13:1)
  • AA: or shift the background to #bfbfbf (4.5:1)
  • AAA: or shift the background to #ededed (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0512ff as the background.

Brands using this color

Fonts for this mood

#0512ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0512ff
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 #0512ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0512ff-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