Color

#2a17ba

#2a17ba
hex#2a17ba
rgbrgb(42, 23, 186)
hslhsl(247, 78%, 41%)
oklchoklch(0.385 0.229 272.6)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0465

Colors that go with #2a17ba

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 →

#a7ba17

#1756ba · #7c17ba

#ba2a17 · #17ba2a

Split-complementary

Open in tool →

#ba7c17 · #56ba17

#ba1756 · #a7ba17 · #17ba7c

Contrast

#2a17ba as textRatioAAAA largeAAAFix
Aaon white
10.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.93:1failfailfail
  • AA: use #7060eb as the text (4.56:1)
  • AAA: use #9589f0 as the text (7.11:1)
  • AA: or shift the background to #a8a8a8 (4.58:1)
  • AAA: or shift the background to #d1d1d1 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a17ba 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

#2a17ba reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a17ba
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 #2a17ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a17ba-a59cc4-dfaa4e-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