Color

#23189a

#23189a
hex#23189a
rgbrgb(35, 24, 154)
hslhsl(245, 73%, 35%)
oklchoklch(0.343 0.194 273)
Closest name: Dramatic Blue (#240093)Relative luminance 0.0334

Colors that go with #23189a

Steel Blue, Crimson and Denim 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 →

#909a18

#184e9a · #64189a

#9a2318 · #189a23

Split-complementary

Open in tool →

#9a6418 · #4e9a18

#9a184e · #909a18 · #189a64

Contrast

#23189a as textRatioAAAA largeAAAFix
Aaon white
12.58:1passpasspassPasses AAA — no fix needed.
Aaon black
1.67:1failfailfail
  • AA: use #6f65e7 as the text (4.69:1)
  • AAA: use #948ced as the text (7.23:1)
  • AA: or shift the background to #9c9c9c (4.58:1)
  • AAA: or shift the background to #c2c2c2 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #23189a 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

#23189a reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #23189a
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 #23189a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23189a-a49cc4-dfa54e-261f2d-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