Color

#271d53

#271d53
hex#271d53
rgbrgb(39, 29, 83)
hslhsl(251, 48%, 22%)
oklchoklch(0.277 0.094 287.1)
Closest name: Azulado (#211d49)Relative luminance 0.0193

Colors that go with #271d53

Charcoal, Sea Green and Sienna lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#49531d

#1d2e53 · #421d53

#53271d · #1d5327

Split-complementary

Open in tool →

#53421d · #2e531d

#531d2e · #49531d · #1d5342

Contrast

#271d53 as textRatioAAAA largeAAAFix
Aaon white
15.14:1passpasspassPasses AAA — no fix needed.
Aaon black
1.39:1failfailfail
  • AA: use #7a68ca as the text (4.66:1)
  • AAA: use #9b8ed7 as the text (7.24:1)
  • AA: or shift the background to #8c8c8c (4.5:1)
  • AAA: or shift the background to #b3b3b3 (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #271d53 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

#271d53 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #271d53
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #271d53 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/271d53-a89cc4-dfb34e-281f2d-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