Color

#28d2e2

#28d2e2
hex#28d2e2
rgbrgb(40, 210, 226)
hslhsl(185, 76%, 52%)
oklchoklch(0.791 0.129 205.1)
Closest name: darkturquoise (#00ced1)Relative luminance 0.5204

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e23728

#28e294 · #2875e2

#e228d2 · #d2e228

Split-complementary

Open in tool →

#e22875 · #e29428

#9428e2 · #e23728 · #75e228

Contrast

#28d2e2 as textRatioAAAA largeAAAFix
Aaon white
1.84:1failfailfail
  • AA: use #13818b as the text (4.62:1)
  • AAA: use #0e6067 as the text (7.27:1)
  • AA: or shift the background to #4d4d4d (4.59:1)
  • AAA: or shift the background to #303030 (7.17:1)
Aaon black
11.41:1passpasspassPasses 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 #28d2e2 as the background.

Brands using this color

Fonts for this mood

#28d2e2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28d2e2
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 #28d2e2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28d2e2-a2b8be-df4e88-1f262d-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