Color

#2b8bda

#2b8bda
hex#2b8bda
rgbrgb(43, 139, 218)
hslhsl(207, 70%, 51%)
oklchoklch(0.621 0.148 248.2)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2404

Colors that go with #2b8bda

Charcoal, Crimson and Copper 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 →

#da792b

#2bdad1 · #2b33da

#da2b8b · #8bda2b

Split-complementary

Open in tool →

#da2b33 · #dad12b

#d12bda · #da792b · #33da2b

Contrast

#2b8bda as textRatioAAAA largeAAAFix
Aaon white
3.62:1failpassfail
  • AA: use #2278bf as the text (4.66:1)
  • AAA: use #195a8f as the text (7.24:1)
  • AA: or shift the background to #1f1f1f (4.56:1)
Aaon black
5.81:1passpassfail
  • AAA: use #499bdf as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b8bda as the background.

Brands using this color

Fonts for this mood

#2b8bda reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b8bda
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 #2b8bda and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b8bda-9cadc4-df4e53-1f212d-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