Color

#28dfe2

#28dfe2
hex#28dfe2
rgbrgb(40, 223, 226)
hslhsl(181, 76%, 52%)
oklchoklch(0.822 0.134 196.7)
Closest name: turquoise (#40e0d0)Relative luminance 0.5872

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e22b28

#28e288 · #2881e2

#e228df · #dfe228

Split-complementary

Open in tool →

#e22881 · #e28828

#8828e2 · #e22b28 · #81e228

Contrast

#28dfe2 as textRatioAAAA largeAAAFix
Aaon white
1.65:1failfailfail
  • AA: use #128082 as the text (4.73:1)
  • AAA: use #0d6163 as the text (7.22:1)
  • AA: or shift the background to #545454 (4.6:1)
  • AAA: or shift the background to #383838 (7.12:1)
Aaon black
12.74:1passpasspassPasses 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 #28dfe2 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

#28dfe2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28dfe2
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 #28dfe2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28dfe2-a2babe-d45992-1f272d-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