Color

#28cdfb

#28cdfb
hex#28cdfb
rgbrgb(40, 205, 251)
hslhsl(193, 96%, 57%)
oklchoklch(0.789 0.14 222.9)
Closest name: Blue Mana (#68c2f5)Relative luminance 0.5108

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fb5628

#28fbbf · #2864fb

#fb28cd · #cdfb28

Split-complementary

Open in tool →

#fb2864 · #fbbf28

#bf28fb · #fb5628 · #64fb28

Contrast

#28cdfb as textRatioAAAA largeAAAFix
Aaon white
1.87:1failfailfail
  • AA: use #037ea0 as the text (4.67:1)
  • AAA: use #025e78 as the text (7.3:1)
  • AA: or shift the background to #4d4d4d (4.51:1)
  • AAA: or shift the background to #303030 (7.05:1)
Aaon black
11.22:1passpasspassPasses 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 #28cdfb as the background.

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/28cdfb-a2b5be-df4e75-1f242d-e9f1ef?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