Color

#2f3642

#2f3642
hex#2f3642
rgbrgb(47, 54, 66)
hslhsl(218, 17%, 22%)
oklchoklch(0.331 0.023 261.2)
Closest name: Artist’s Charcoal (#37393e)Relative luminance 0.0364

Tints & shades

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

Harmonies

Complementary

Open in tool →

#423b2f

#2f3f42 · #312f42

#422f36 · #36422f

Split-complementary

Open in tool →

#42312f · #3f422f

#422f3f · #423b2f · #2f4231

Contrast

#2f3642 as textRatioAAAA largeAAAFix
Aaon white
12.16:1passpasspassPasses AAA — no fix needed.
Aaon black
1.73:1failfailfail
  • AA: use #66758f as the text (4.51:1)
  • AAA: use #8b97ac as the text (7.12:1)
  • AA: or shift the background to #9e9e9e (4.54:1)
  • AAA: or shift the background to #c7c7c7 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f3642 as the background.

Brands using this color

Fonts for this mood

#2f3642 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f3642
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 #2f3642 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f3642-9ca6c4-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