Color

#3aa2cf

#3aa2cf
hex#3aa2cf
rgbrgb(58, 162, 207)
hslhsl(198, 61%, 52%)
oklchoklch(0.672 0.114 230.8)
Closest name: Blue Burst (#309cd0)Relative luminance 0.3125

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cf673a

#3acfb1 · #3a58cf

#cf3aa2 · #a2cf3a

Split-complementary

Open in tool →

#cf3a58 · #cfb13a

#b13acf · #cf673a · #58cf3a

Contrast

#3aa2cf as textRatioAAAA largeAAAFix
Aaon white
2.9:1failfailfail
  • AA: use #287fa4 as the text (4.5:1)
  • AAA: use #1e5f7b as the text (7.05:1)
  • AA: or shift the background to #303030 (4.56:1)
  • AAA: or shift the background to #050505 (7.04:1)
Aaon black
7.25:1passpasspassPasses 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 #3aa2cf as the background.

Brands using this color

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

Fonts for this mood

#3aa2cf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3aa2cf
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 #3aa2cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3aa2cf-9cb3c4-df4e69-1f232d-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