Color

#3bcbe8

#3bcbe8
hex#3bcbe8
rgbrgb(59, 203, 232)
hslhsl(190, 79%, 57%)
oklchoklch(0.78 0.124 214.6)
Closest name: darkturquoise (#00ced1)Relative luminance 0.4947

Colors that go with #3bcbe8

Charcoal, Dark Orange and Midnight Blue 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 →

#e8583b

#3be8ae · #3b74e8

#e83bcb · #cbe83b

Split-complementary

Open in tool →

#e83b74 · #e8ae3b

#ae3be8 · #e8583b · #74e83b

Contrast

#3bcbe8 as textRatioAAAA largeAAAFix
Aaon white
1.93:1failfailfail
  • AA: use #128097 as the text (4.6:1)
  • AAA: use #0d6172 as the text (7.07:1)
  • AA: or shift the background to #4a4a4a (4.6:1)
  • AAA: or shift the background to #2e2e2e (7.04:1)
Aaon black
10.89:1passpasspassPasses 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 #3bcbe8 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

#3bcbe8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3bcbe8
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 #3bcbe8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bcbe8-a2b6be-df4e7c-1f252d-e9f1ef?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