Color

#3003aa

#3003aa
hex#3003aa
rgbrgb(48, 3, 170)
hslhsl(256, 97%, 34%)
oklchoklch(0.358 0.219 277.3)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.036

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7eab03

#032aab · #8403ab

#ab2f03 · #03ab2f

Split-complementary

Open in tool →

#ab8403 · #2aab03

#ab032a · #7eab03 · #03ab84

Contrast

#3003aa as textRatioAAAA largeAAAFix
Aaon white
12.22:1passpasspassPasses AAA — no fix needed.
Aaon black
1.72:1failfailfail
  • AA: use #8154fc as the text (4.61:1)
  • AAA: use #a281fd as the text (7.09:1)
  • AA: or shift the background to #9e9e9e (4.56:1)
  • AAA: or shift the background to #c4c4c4 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3003aa 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

#3003aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3003aa
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 #3003aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3003aa-ab9cc4-dfbf4e-291f2d-e9ebf1?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