Color

#2b8bb1

#2b8bb1
hex#2b8bb1
rgbrgb(43, 139, 177)
hslhsl(197, 61%, 43%)
oklchoklch(0.599 0.103 229.1)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2215

Colors that go with #2b8bb1

Charcoal, Copper and Crimson 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 →

#b1512b

#2bb194 · #2b48b1

#b12b8b · #8bb12b

Split-complementary

Open in tool →

#b12b48 · #b1942b

#942bb1 · #b1512b · #48b12b

Contrast

#2b8bb1 as textRatioAAAA largeAAAFix
Aaon white
3.87:1failpassfail
  • AA: use #277ea0 as the text (4.59:1)
  • AAA: use #1d5d77 as the text (7.28:1)
  • AA: or shift the background to #1a1a1a (4.5:1)
Aaon black
5.43:1passpassfail
  • AAA: use #32a1cd as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b8bb1 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#2b8bb1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b8bb1
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 #2b8bb1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b8bb1-9cb4c4-df4e6b-1f232d-e9f1ef?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