Color

#28fbfb

#28fbfb
hex#28fbfb
rgbrgb(40, 251, 251)
hslhsl(180, 96%, 57%)
oklchoklch(0.897 0.148 194.8)
Closest name: Arctic Water (#00fcfc)Relative luminance 0.7641

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fb2828

#28fb91 · #2891fb

#fb28fb · #fbfb28

Split-complementary

Open in tool →

#fb2891 · #fb9128

#9128fb · #fb2828 · #91fb28

Contrast

#28fbfb as textRatioAAAA largeAAAFix
Aaon white
1.29:1failfailfail
  • AA: use #038282 as the text (4.65:1)
  • AAA: use #025f5f as the text (7.49:1)
  • AA: or shift the background to #636363 (4.66:1)
  • AAA: or shift the background to #474747 (7.2:1)
Aaon black
16.28:1passpasspassPasses 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 #28fbfb 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

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

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

tool url/palettes/new/28fbfb-a2bbbe-d45994-1f272d-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