Color

#2aaaef

#2aaaef
hex#2aaaef
rgbrgb(42, 170, 239)
hslhsl(201, 86%, 55%)
oklchoklch(0.703 0.146 238.7)
Closest name: Cerulean (#55aaee)Relative luminance 0.3547

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ef6f2a

#2aefd1 · #2a47ef

#ef2aaa · #aaef2a

Split-complementary

Open in tool →

#ef2a47 · #efd12a

#d12aef · #ef6f2a · #47ef2a

Contrast

#2aaaef as textRatioAAAA largeAAAFix
Aaon white
2.59:1failfailfail
  • AA: use #0e7db9 as the text (4.51:1)
  • AAA: use #0a5d8a as the text (7.13:1)
  • AA: or shift the background to #383838 (4.52:1)
  • AAA: or shift the background to #141414 (7.1:1)
Aaon black
8.09:1passpasspassPasses 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 #2aaaef as the background.

Brands using this color

Palettes built around it

Fonts for this mood

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

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

tool url/palettes/new/2aaaef-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