Color

#232b71

#232b71
hex#232b71
rgbrgb(35, 43, 113)
hslhsl(234, 53%, 29%)
oklchoklch(0.328 0.12 272.9)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0328

Colors that go with #232b71

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 →

#716923

#235271 · #422371

#71232b · #2b7123

Split-complementary

Open in tool →

#714223 · #527123

#712352 · #716923 · #237142

Contrast

#232b71 as textRatioAAAA largeAAAFix
Aaon white
12.69:1passpasspassPasses AAA — no fix needed.
Aaon black
1.66:1failfailfail
  • AA: use #636ecf as the text (4.66:1)
  • AAA: use #8a92db as the text (7.22:1)
  • AA: or shift the background to #9c9c9c (4.62:1)
  • AAA: or shift the background to #c2c2c2 (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 #232b71 as the background.

Brands using this color

Fonts for this mood

#232b71 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #232b71
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 #232b71 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/232b71-9d9cc4-df8a4e-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