Color

#232f43

#232f43
hex#232f43
rgbrgb(35, 47, 67)
hslhsl(218, 31%, 20%)
oklchoklch(0.304 0.04 260.4)
Closest name: Blue Whale (#1e3442)Relative luminance 0.028

Tints & shades

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

Harmonies

Complementary

Open in tool →

#433723

#233f43 · #272343

#43232f · #2f4323

Split-complementary

Open in tool →

#432723 · #3f4323

#43233f · #433723 · #234327

Contrast

#232f43 as textRatioAAAA largeAAAFix
Aaon white
13.47:1passpasspassPasses AAA — no fix needed.
Aaon black
1.56:1failfailfail
  • AA: use #5875a7 as the text (4.52:1)
  • AAA: use #8096bc as the text (7.01:1)
  • AA: or shift the background to #969696 (4.55:1)
  • AAA: or shift the background to #bdbdbd (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #232f43 as the background.

Brands using this color

Fonts for this mood

#232f43 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #232f43
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 #232f43 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/232f43-9ca6c4-df644e-201f2d-e9f0f1?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