Color

#1f281f

#1f281f
hex#1f281f
rgbrgb(31, 40, 31)
hslhsl(120, 13%, 14%)
oklchoklch(0.265 0.021 145)
Closest name: Underworld (#1e231c)Relative luminance 0.0191

Tints & shades

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

Harmonies

Complementary

Open in tool →

#281f28

#24281f · #1f2824

#1f1f28 · #281f1f

Split-complementary

Open in tool →

#241f28 · #281f24

#1f2428 · #281f28 · #28241f

Contrast

#1f281f as textRatioAAAA largeAAAFix
Aaon white
15.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.38:1failfailfail
  • AA: use #5f7c5f as the text (4.53:1)
  • AAA: use #809d80 as the text (7.05:1)
  • AA: or shift the background to #8c8c8c (4.52:1)
  • AAA: or shift the background to #b0b0b0 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f281f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1f281f reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f281f
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 #1f281f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f281f-a2bea5-994edf-1f2d25-edf1e9?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