Color

#28fbdb

#28fbdb
hex#28fbdb
rgbrgb(40, 251, 219)
hslhsl(171, 96%, 57%)
oklchoklch(0.887 0.157 178.6)
Closest name: Frozen Boubble (#00eedd)Relative luminance 0.7456

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fb2848

#28fb72 · #28b1fb

#db28fb · #fbdb28

Split-complementary

Open in tool →

#fb28b1 · #fb7228

#7228fb · #fb2848 · #b1fb28

Contrast

#28fbdb as textRatioAAAA largeAAAFix
Aaon white
1.32:1failfailfail
  • AA: use #03826f as the text (4.74:1)
  • AAA: use #026455 as the text (7.1:1)
  • AA: or shift the background to #636363 (4.55:1)
  • AAA: or shift the background to #474747 (7.04:1)
Aaon black
15.91:1passpasspassPasses 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 #28fbdb 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 #28fbdb
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 #28fbdb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28fbdb-a2bebd-d459a7-1f292d-e9f1ec?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