Color

#2f3037

#2f3037
hex#2f3037
rgbrgb(47, 48, 55)
hslhsl(233, 8%, 20%)
oklchoklch(0.311 0.013 279.2)
Closest name: Nightmare Fuel (#293135)Relative luminance 0.0299

Tints & shades

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

Harmonies

Complementary

Open in tool →

#37362f

#2f3437 · #322f37

#372f30 · #30372f

Split-complementary

Open in tool →

#37322f · #34372f

#372f34 · #37362f · #2f3732

Contrast

#2f3037 as textRatioAAAA largeAAAFix
Aaon white
13.13:1passpasspassPasses AAA — no fix needed.
Aaon black
1.6:1failfailfail
  • AA: use #737587 as the text (4.62:1)
  • AAA: use #9495a4 as the text (7.09:1)
  • AA: or shift the background to #999999 (4.61:1)
  • AAA: or shift the background to #bfbfbf (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 #2f3037 as the background.

Brands using this color

Fonts for this mood

#2f3037 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f3037
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 #2f3037 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f3037-9c9cc4-df884e-241f2d-e9eef1?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