Color

#28c4dc

#28c4dc
hex#28c4dc
rgbrgb(40, 196, 220)
hslhsl(188, 72%, 51%)
oklchoklch(0.755 0.124 211.1)
Closest name: darkturquoise (#00ced1)Relative luminance 0.451

Colors that go with #28c4dc

Charcoal, Dark Orange and Denim lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dc4028

#28dc9a · #286adc

#dc28c4 · #c4dc28

Split-complementary

Open in tool →

#dc286a · #dc9a28

#9a28dc · #dc4028 · #6adc28

Contrast

#28c4dc as textRatioAAAA largeAAAFix
Aaon white
2.1:1failfailfail
  • AA: use #188191 as the text (4.58:1)
  • AAA: use #12616e as the text (7.09:1)
  • AA: or shift the background to #454545 (4.57:1)
  • AAA: or shift the background to #262626 (7.22:1)
Aaon black
10.02:1passpasspassPasses 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 #28c4dc as the background.

Brands using this color

Fonts for this mood

#28c4dc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28c4dc
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #28c4dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28c4dc-a2b7be-df4e81-1f252d-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