Color

#2b71da

#2b71da
hex#2b71da
rgbrgb(43, 113, 218)
hslhsl(216, 70%, 51%)
oklchoklch(0.563 0.176 258.8)
Closest name: royalblue (#4169e1)Relative luminance 0.1739

Tints & shades

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

Harmonies

Complementary

Open in tool →

#da942b

#2bc8da · #3c2bda

#da2b71 · #71da2b

Split-complementary

Open in tool →

#da3c2b · #c8da2b

#da2bc8 · #da942b · #2bda3c

Contrast

#2b71da as textRatioAAAA largeAAAFix
Aaon white
4.69:1passpassfail
  • AAA: use #1e56a9 as the text (7.1:1)
Aaon black
4.48:1failpassfail
  • AA: use #2f73da as the text (4.59:1)
  • AAA: use #6396e3 as the text (7:1)
  • AA: or shift the background to #fcfcfc (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b71da 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

#2b71da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b71da
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 #2b71da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b71da-9ca7c4-df5f4e-201f2d-e9f0f1?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