Color

#28dcf0

#28dcf0
hex#28dcf0
rgbrgb(40, 220, 240)
hslhsl(186, 87%, 55%)
oklchoklch(0.82 0.135 207)
Closest name: Hammam Blue (#65dcd6)Relative luminance 0.5793

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f03c28

#28f0a0 · #2878f0

#f028dc · #dcf028

Split-complementary

Open in tool →

#f02878 · #f0a028

#a028f0 · #f03c28 · #78f028

Contrast

#28dcf0 as textRatioAAAA largeAAAFix
Aaon white
1.67:1failfailfail
  • AA: use #0a828f as the text (4.56:1)
  • AAA: use #075f69 as the text (7.37:1)
  • AA: or shift the background to #545454 (4.54:1)
  • AAA: or shift the background to #383838 (7.03:1)
Aaon black
12.59:1passpasspassPasses 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 #28dcf0 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

#28dcf0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28dcf0
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 #28dcf0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28dcf0-a2b8be-df4e86-1f262d-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