Color

#2a03ba

#2a03ba
hex#2a03ba
rgbrgb(42, 3, 186)
hslhsl(253, 97%, 37%)
oklchoklch(0.374 0.237 273.1)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.041

Colors that go with #2a03ba

Charcoal, Steel Blue and Cornflower Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#92ba03

#0337ba · #8603ba

#ba2a03 · #03ba2a

Split-complementary

Open in tool →

#ba8603 · #37ba03

#ba0337 · #92ba03 · #03ba86

Contrast

#2a03ba as textRatioAAAA largeAAAFix
Aaon white
11.54:1passpasspassPasses AAA — no fix needed.
Aaon black
1.82:1failfailfail
  • AA: use #7d59fc as the text (4.71:1)
  • AAA: use #a086fd as the text (7.32:1)
  • AA: or shift the background to #a3a3a3 (4.57:1)
  • AAA: or shift the background to #cccccc (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a03ba 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

#2a03ba reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a03ba
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #2a03ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a03ba-a99cc4-dfb84e-281f2d-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