Color

#2aa9fe

#2aa9fe
hex#2aa9fe
rgbrgb(42, 169, 254)
hslhsl(204, 99%, 58%)
oklchoklch(0.708 0.162 244.3)
Closest name: Cerulean (#55aaee)Relative luminance 0.3602

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fe7f2a

#2afee9 · #2a3ffe

#fe2aa9 · #a9fe2a

Split-complementary

Open in tool →

#fe2a3f · #fee92a

#e92afe · #fe7f2a · #3ffe2a

Contrast

#2aa9fe as textRatioAAAA largeAAAFix
Aaon white
2.56:1failfailfail
  • AA: use #017acb as the text (4.52:1)
  • AAA: use #015c98 as the text (7.03:1)
  • AA: or shift the background to #383838 (4.58:1)
  • AAA: or shift the background to #171717 (7:1)
Aaon black
8.2:1passpasspassPasses 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 #2aa9fe as the background.

Brands using this color

Fonts for this mood

#2aa9fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2aa9fe
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 #2aa9fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2aa9fe-9cafc4-df4e5a-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