Color

#223f4e

#223f4e
hex#223f4e
rgbrgb(34, 63, 78)
hslhsl(200, 39%, 22%)
oklchoklch(0.352 0.044 232.4)
Closest name: Cold and Dark (#154250)Relative luminance 0.0445

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4e3122

#224e47 · #222a4e

#4e223f · #3f4e22

Split-complementary

Open in tool →

#4e222a · #4e4722

#47224e · #4e3122 · #2a4e22

Contrast

#223f4e as textRatioAAAA largeAAAFix
Aaon white
11.12:1passpasspassPasses AAA — no fix needed.
Aaon black
1.89:1failfailfail
  • AA: use #437c98 as the text (4.58:1)
  • AAA: use #639dbb as the text (7.07:1)
  • AA: or shift the background to #a6a6a6 (4.57:1)
  • AAA: or shift the background to #cfcfcf (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #223f4e 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

#223f4e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #223f4e
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 #223f4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/223f4e-9cb2c4-df4e64-1f232d-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