Color

#40eef7

#40eef7
hex#40eef7
rgbrgb(64, 238, 247)
hslhsl(183, 92%, 61%)
oklchoklch(0.868 0.135 200.3)
Closest name: Aqua (#0ff0fe)Relative luminance 0.6895

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f74940

#40f7a5 · #4092f7

#f740ee · #eef740

Split-complementary

Open in tool →

#f74092 · #f7a540

#a540f7 · #f74940 · #92f740

Contrast

#40eef7 as textRatioAAAA largeAAAFix
Aaon white
1.42:1failfailfail
  • AA: use #068389 as the text (4.55:1)
  • AAA: use #046267 as the text (7.12:1)
  • AA: or shift the background to #5e5e5e (4.57:1)
  • AAA: or shift the background to #424242 (7.08:1)
Aaon black
14.79:1passpasspassPasses 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 #40eef7 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

#40eef7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40eef7
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 #40eef7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40eef7-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