Color

#271f33

#271f33
hex#271f33
rgbrgb(39, 31, 51)
hslhsl(264, 24%, 16%)
oklchoklch(0.258 0.038 302.2)
Closest name: Black Velvet (#222233)Relative luminance 0.0165

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b331f

#1f2133 · #311f33

#33271f · #1f3327

Split-complementary

Open in tool →

#33311f · #21331f

#331f21 · #2b331f · #1f3331

Contrast

#271f33 as textRatioAAAA largeAAAFix
Aaon white
15.79:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #816aa4 as the text (4.53:1)
  • AAA: use #a190bb as the text (7.22:1)
  • AA: or shift the background to #8a8a8a (4.57:1)
  • AAA: or shift the background to #adadad (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #271f33 as the background.

Brands using this color

Fonts for this mood

#271f33 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #271f33
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 #271f33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/271f33-b19cc4-dfd34e-2b1f2d-e9eaf1?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