Color

#2803fc

#2803fc
hex#2803fc
rgbrgb(40, 3, 252)
hslhsl(249, 98%, 50%)
oklchoklch(0.458 0.303 268.5)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0754

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d7fc03

#035afc · #a503fc

#fc2803 · #03fc28

Split-complementary

Open in tool →

#fca503 · #5afc03

#fc035a · #d7fc03 · #03fca5

Contrast

#2803fc as textRatioAAAA largeAAAFix
Aaon white
8.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.51:1failfailfail
  • AA: use #7158fd as the text (4.52:1)
  • AAA: use #9886fe as the text (7.18:1)
  • AA: or shift the background to #bfbfbf (4.55:1)
  • AAA: or shift the background to #ebebeb (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2803fc as the background.

Brands using this color

Fonts for this mood

#2803fc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2803fc
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 #2803fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2803fc-a79cc4-dfae4e-271f2d-e9ecf1?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