Color

#3bc3de

#3bc3de
hex#3bc3de
rgbrgb(59, 195, 222)
hslhsl(190, 71%, 55%)
oklchoklch(0.757 0.119 214.2)
Closest name: Blue Martini (#52b4d3)Relative luminance 0.4523

Tints & shades

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

Harmonies

Complementary

Open in tool →

#de563b

#3bdea7 · #3b71de

#de3bc3 · #c3de3b

Split-complementary

Open in tool →

#de3b71 · #dea73b

#a73bde · #de563b · #71de3b

Contrast

#3bc3de as textRatioAAAA largeAAAFix
Aaon white
2.09:1failfailfail
  • AA: use #198094 as the text (4.61:1)
  • AAA: use #125e6d as the text (7.37:1)
  • AA: or shift the background to #454545 (4.59:1)
  • AAA: or shift the background to #262626 (7.24:1)
Aaon black
10.05:1passpasspassPasses 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 #3bc3de 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

#3bc3de reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3bc3de
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 #3bc3de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bc3de-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