Color

#271b36

#271b36
hex#271b36
rgbrgb(39, 27, 54)
hslhsl(267, 33%, 16%)
oklchoklch(0.251 0.052 303.4)
Closest name: Eclipse Elixir (#1f2133)Relative luminance 0.0148

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2a361b

#1b1d36 · #351b36

#36271b · #1b3627

Split-complementary

Open in tool →

#36351b · #1d361b

#361b1d · #2a361b · #1b3635

Contrast

#271b36 as textRatioAAAA largeAAAFix
Aaon white
16.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.3:1failfailfail
  • AA: use #8866b2 as the text (4.59:1)
  • AAA: use #a58cc5 as the text (7.16:1)
  • AA: or shift the background to #878787 (4.51:1)
  • AAA: or shift the background to #ababab (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #271b36 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#271b36 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #271b36
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 #271b36 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/271b36-b39cc4-dfda4e-2c1f2d-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