Color

#2b91de

#2b91de
hex#2b91de
rgbrgb(43, 145, 222)
hslhsl(206, 73%, 52%)
oklchoklch(0.637 0.147 246.4)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2604

Tints & shades

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

Harmonies

Complementary

Open in tool →

#de792b

#2bded2 · #2b37de

#de2b91 · #91de2b

Split-complementary

Open in tool →

#de2b37 · #ded22b

#d22bde · #de792b · #37de2b

Contrast

#2b91de as textRatioAAAA largeAAAFix
Aaon white
3.38:1failpassfail
  • AA: use #1e78be as the text (4.68:1)
  • AAA: use #175c92 as the text (7.04:1)
  • AA: or shift the background to #242424 (4.59:1)
Aaon black
6.21:1passpassfail
  • AAA: use #419ce1 as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b91de 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

#2b91de reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b91de
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 #2b91de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b91de-9caec4-df4e56-1f212d-e9f1f1?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