Color

#2d17ba

#2d17ba
hex#2d17ba
rgbrgb(45, 23, 186)
hslhsl(248, 78%, 41%)
oklchoklch(0.387 0.228 273.6)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0472

Colors that go with #2d17ba

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 →

#a4ba17

#1753ba · #7e17ba

#ba2d17 · #17ba2d

Split-complementary

Open in tool →

#ba7e17 · #53ba17

#ba1753 · #a4ba17 · #17ba7e

Contrast

#2d17ba as textRatioAAAA largeAAAFix
Aaon white
10.81:1passpasspassPasses AAA — no fix needed.
Aaon black
1.94:1failfailfail
  • AA: use #7360eb as the text (4.6:1)
  • AAA: use #9789f0 as the text (7.15:1)
  • AA: or shift the background to #a8a8a8 (4.54:1)
  • AAA: or shift the background to #d1d1d1 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d17ba 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

#2d17ba reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d17ba
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 #2d17ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d17ba-a69cc4-dfac4e-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