Color

#3ac3cb

#3ac3cb
hex#3ac3cb
rgbrgb(58, 195, 203)
hslhsl(183, 58%, 51%)
oklchoklch(0.749 0.114 200.8)
Closest name: darkturquoise (#00ced1)Relative luminance 0.4424

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cb413a

#3acb89 · #3a7bcb

#cb3ac3 · #c3cb3a

Split-complementary

Open in tool →

#cb3a7b · #cb893a

#893acb · #cb413a · #7bcb3a

Contrast

#3ac3cb as textRatioAAAA largeAAAFix
Aaon white
2.13:1failfailfail
  • AA: use #238085 as the text (4.67:1)
  • AAA: use #1b6165 as the text (7.13:1)
  • AA: or shift the background to #424242 (4.71:1)
  • AAA: or shift the background to #262626 (7.1:1)
Aaon black
9.85:1passpasspassPasses 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 #3ac3cb 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

#3ac3cb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3ac3cb
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 #3ac3cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ac3cb-a2b9be-d4598e-1f262d-e9f1ee?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