Color

#4fc3de

#4fc3de
hex#4fc3de
rgbrgb(79, 195, 222)
hslhsl(191, 68%, 59%)
oklchoklch(0.762 0.11 215.9)
Closest name: Blue Martini (#52b4d3)Relative luminance 0.4597

Tints & shades

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

Harmonies

Complementary

Open in tool →

#de694f

#4fdeb1 · #4f7cde

#de4fc3 · #c3de4f

Split-complementary

Open in tool →

#de4f7c · #deb14f

#b14fde · #de694f · #7cde4f

Contrast

#4fc3de as textRatioAAAA largeAAAFix
Aaon white
2.06:1failfailfail
  • AA: use #1d8096 as the text (4.58:1)
  • AAA: use #155f6f as the text (7.25:1)
  • AA: or shift the background to #474747 (4.51:1)
  • AAA: or shift the background to #292929 (7.06:1)
Aaon black
10.19:1passpasspassPasses 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 #4fc3de 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

#4fc3de reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4fc3de
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 #4fc3de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4fc3de-a2b6be-df4e7a-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