Color

#2aa3e5

#2aa3e5
hex#2aa3e5
rgbrgb(42, 163, 229)
hslhsl(201, 78%, 53%)
oklchoklch(0.682 0.14 238.8)
Closest name: Blue Burst (#309cd0)Relative luminance 0.3234

Colors that go with #2aa3e5

Charcoal, Bronze and Amber 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 →

#e56b2a

#2ae5c9 · #2a46e5

#e52aa3 · #a3e52a

Split-complementary

Open in tool →

#e52a46 · #e5c92a

#c92ae5 · #e56b2a · #46e52a

Contrast

#2aa3e5 as textRatioAAAA largeAAAFix
Aaon white
2.81:1failfailfail
  • AA: use #167bb1 as the text (4.66:1)
  • AAA: use #115e88 as the text (7.05:1)
  • AA: or shift the background to #303030 (4.69:1)
  • AAA: or shift the background to #0a0a0a (7.04:1)
Aaon black
7.47:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2aa3e5 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2aa3e5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2aa3e5
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 #2aa3e5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2aa3e5-9cb1c4-df4e62-1f222d-e9f1f0?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