Color

#2b19b3

#2b19b3
hex#2b19b3
rgbrgb(43, 25, 179)
hslhsl(247, 75%, 40%)
oklchoklch(0.379 0.22 273.5)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0446

Colors that go with #2b19b3

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 →

#a1b319

#1954b3 · #7819b3

#b32b19 · #19b32b

Split-complementary

Open in tool →

#b37819 · #54b319

#b31954 · #a1b319 · #19b378

Contrast

#2b19b3 as textRatioAAAA largeAAAFix
Aaon white
11.1:1passpasspassPasses AAA — no fix needed.
Aaon black
1.89:1failfailfail
  • AA: use #7263e9 as the text (4.68:1)
  • AAA: use #978bee as the text (7.24:1)
  • AA: or shift the background to #a6a6a6 (4.56:1)
  • AAA: or shift the background to #cfcfcf (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b19b3 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

#2b19b3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b19b3
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 #2b19b3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b19b3-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