Color

#271d77

#271d77
hex#271d77
rgbrgb(39, 29, 119)
hslhsl(247, 61%, 29%)
oklchoklch(0.312 0.145 278.9)
Closest name: Deep Space Rodeo (#332277)Relative luminance 0.0264

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6d771d

#1d3f77 · #541d77

#77271d · #1d7727

Split-complementary

Open in tool →

#77541d · #3f771d

#771d3f · #6d771d · #1d7754

Contrast

#271d77 as textRatioAAAA largeAAAFix
Aaon white
13.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.53:1failfailfail
  • AA: use #7567da as the text (4.71:1)
  • AAA: use #968ce3 as the text (7.16:1)
  • AA: or shift the background to #949494 (4.53:1)
  • AAA: or shift the background to #bababa (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #271d77 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

#271d77 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #271d77
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 #271d77 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/271d77-a59cc4-dfaa4e-271f2d-e9ecf1?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