Color

#2f373c

#2f373c
hex#2f373c
rgbrgb(47, 55, 60)
hslhsl(203, 12%, 21%)
oklchoklch(0.331 0.014 235.3)
Closest name: Artist’s Charcoal (#37393e)Relative luminance 0.0366

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3c342f

#2f3c3a · #2f313c

#3c2f37 · #373c2f

Split-complementary

Open in tool →

#3c2f31 · #3c3a2f

#3a2f3c · #3c342f · #313c2f

Contrast

#2f373c as textRatioAAAA largeAAAFix
Aaon white
12.12:1passpasspassPasses AAA — no fix needed.
Aaon black
1.73:1failfailfail
  • AA: use #677983 as the text (4.64:1)
  • AAA: use #8a99a3 as the text (7.17:1)
  • AA: or shift the background to #9e9e9e (4.52:1)
  • AAA: or shift the background to #c7c7c7 (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 #2f373c as the background.

Brands using this color

Fonts for this mood

#2f373c reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f373c
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 #2f373c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f373c-9cb0c4-df4e5d-1f222d-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