Color

#1f2b33

#1f2b33
hex#1f2b33
rgbrgb(31, 43, 51)
hslhsl(204, 24%, 16%)
oklchoklch(0.282 0.022 237.8)
Closest name: Infinity (#222831)Relative luminance 0.0226

Tints & shades

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

Harmonies

Complementary

Open in tool →

#33271f

#1f3331 · #1f2133

#331f2b · #2b331f

Split-complementary

Open in tool →

#331f21 · #33311f

#311f33 · #33271f · #21331f

Contrast

#1f2b33 as textRatioAAAA largeAAAFix
Aaon white
14.47:1passpasspassPasses AAA — no fix needed.
Aaon black
1.45:1failfailfail
  • AA: use #597b91 as the text (4.67:1)
  • AAA: use #7d9bb0 as the text (7.19:1)
  • AA: or shift the background to #919191 (4.59:1)
  • AAA: or shift the background to #b5b5b5 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f2b33 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1f2b33 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f2b33
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 #1f2b33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f2b33-9cafc4-df4e5a-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