Color

#23749a

#23749a
hex#23749a
rgbrgb(35, 116, 154)
hslhsl(199, 63%, 37%)
oklchoklch(0.529 0.096 233.5)
Closest name: Bleu Ciel (#007ba1)Relative luminance 0.1518

Colors that go with #23749a

Charcoal, Crimson and Royal 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.

Real palettes that use #23749a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9a4923

#239a84 · #23399a

#9a2374 · #749a23

Split-complementary

Open in tool →

#9a2339 · #9a8423

#84239a · #9a4923 · #399a23

Contrast

#23749a as textRatioAAAA largeAAAFix
Aaon white
5.2:1passpassfail
  • AAA: use #1c5e7d as the text (7.13:1)
Aaon black
4.04:1failpassfail
  • AA: use #267ea6 as the text (4.62:1)
  • AAA: use #339fd1 as the text (7.02:1)
  • AA: or shift the background to #f0f0f0 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #23749a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#23749a reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #23749a
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 #23749a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23749a-9cb3c4-df4e66-1f232d-e9f1f0?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