Color

#2f404c

#2f404c
hex#2f404c
rgbrgb(47, 64, 76)
hslhsl(205, 24%, 24%)
oklchoklch(0.362 0.03 239.4)
Closest name: Arsenic (#3b444b)Relative luminance 0.0479

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4c3b2f

#2f4c49 · #2f314c

#4c2f40 · #404c2f

Split-complementary

Open in tool →

#4c2f31 · #4c492f

#492f4c · #4c3b2f · #314c2f

Contrast

#2f404c as textRatioAAAA largeAAAFix
Aaon white
10.72:1passpasspassPasses AAA — no fix needed.
Aaon black
1.96:1failfailfail
  • AA: use #597a91 as the text (4.62:1)
  • AAA: use #7d9bb0 as the text (7.19:1)
  • AA: or shift the background to #a8a8a8 (4.51:1)
  • AAA: or shift the background to #d1d1d1 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f404c 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

#2f404c reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f404c
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 #2f404c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f404c-9cafc4-df4e58-1f212d-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