Color

#233a52

#233a52
hex#233a52
rgbrgb(35, 58, 82)
hslhsl(211, 40%, 23%)
oklchoklch(0.341 0.051 250.5)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0399

Tints & shades

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

Harmonies

Complementary

Open in tool →

#523b23

#235152 · #242352

#52233a · #3a5223

Split-complementary

Open in tool →

#522423 · #515223

#522351 · #523b23 · #235224

Contrast

#233a52 as textRatioAAAA largeAAAFix
Aaon white
11.68:1passpasspassPasses AAA — no fix needed.
Aaon black
1.8:1failfailfail
  • AA: use #4979ab as the text (4.61:1)
  • AAA: use #749ac3 as the text (7.15:1)
  • AA: or shift the background to #a1a1a1 (4.52:1)
  • AAA: or shift the background to #c9c9c9 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #233a52 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

#233a52 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #233a52
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #233a52 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/233a52-9cabc4-df534e-1f202d-e9f1f1?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