Color

#28eff6

#28eff6
hex#28eff6
rgbrgb(40, 239, 246)
hslhsl(182, 92%, 56%)
oklchoklch(0.867 0.142 198.8)
Closest name: Aqua (#0ff0fe)Relative luminance 0.6884

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f62e28

#28f696 · #2888f6

#f628ef · #eff628

Split-complementary

Open in tool →

#f62888 · #f69628

#9628f6 · #f62e28 · #88f628

Contrast

#28eff6 as textRatioAAAA largeAAAFix
Aaon white
1.42:1failfailfail
  • AA: use #068084 as the text (4.74:1)
  • AAA: use #045f62 as the text (7.45:1)
  • AA: or shift the background to #5e5e5e (4.56:1)
  • AAA: or shift the background to #424242 (7.07:1)
Aaon black
14.77:1passpasspassPasses 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 #28eff6 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

#28eff6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28eff6
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 #28eff6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28eff6-a2babe-d45990-1f272d-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