Color

#4efdfa

#4efdfa
hex#4efdfa
rgbrgb(78, 253, 250)
hslhsl(179, 98%, 65%)
oklchoklch(0.907 0.138 193.3)
Closest name: aqua (#00ffff)Relative luminance 0.7877

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fd4e51

#4efda3 · #4ea9fd

#fa4efd · #fdfa4e

Split-complementary

Open in tool →

#fd4ea9 · #fda34e

#a34efd · #fd4e51 · #a9fd4e

Contrast

#4efdfa as textRatioAAAA largeAAAFix
Aaon white
1.25:1failfailfail
  • AA: use #018381 as the text (4.6:1)
  • AAA: use #01605e as the text (7.4:1)
  • AA: or shift the background to #666666 (4.58:1)
  • AAA: or shift the background to #4a4a4a (7.07:1)
Aaon black
16.75:1passpasspassPasses 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 #4efdfa as the background.

Brands using this color

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

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

tool url/palettes/new/4efdfa-a2bbbe-d45996-1f272d-e9f1ed?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