Color

#271dd7

#271dd7
hex#271dd7
rgbrgb(39, 29, 215)
hslhsl(243, 76%, 48%)
oklchoklch(0.424 0.257 269.7)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0622

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ced71d

#1d71d7 · #841dd7

#d7271d · #1dd727

Split-complementary

Open in tool →

#d7841d · #71d71d

#d71d71 · #ced71d · #1dd784

Contrast

#271dd7 as textRatioAAAA largeAAAFix
Aaon white
9.36:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #6962ea as the text (4.54:1)
  • AAA: use #8f8aef as the text (7.05:1)
  • AA: or shift the background to #b5b5b5 (4.57:1)
  • AAA: or shift the background to #e0e0e0 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #271dd7 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

#271dd7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #271dd7
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 #271dd7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/271dd7-a39cc4-dfa04e-261f2d-e9edf1?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