Color

#23297b

#23297b
hex#23297b
rgbrgb(35, 41, 123)
hslhsl(236, 56%, 31%)
oklchoklch(0.334 0.137 273.1)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0337

Colors that go with #23297b

Charcoal, Steel Blue and 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 →

#7b7523

#23557b · #49237b

#7b2329 · #297b23

Split-complementary

Open in tool →

#7b4923 · #557b23

#7b2355 · #7b7523 · #237b49

Contrast

#23297b as textRatioAAAA largeAAAFix
Aaon white
12.54:1passpasspassPasses AAA — no fix needed.
Aaon black
1.67:1failfailfail
  • AA: use #646bd3 as the text (4.59:1)
  • AAA: use #8c91de as the text (7.22:1)
  • AA: or shift the background to #9c9c9c (4.57:1)
  • AAA: or shift the background to #c2c2c2 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #23297b 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

#23297b reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #23297b
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 #23297b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23297b-9e9cc4-df8f4e-241f2d-e9eef1?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