Color

#28abd7

#28abd7
hex#28abd7
rgbrgb(40, 171, 215)
hslhsl(195, 69%, 50%)
oklchoklch(0.693 0.124 226.5)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3448

Colors that go with #28abd7

Charcoal, Amber and Blue 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 →

#d75428

#28d7ab · #2854d7

#d728ab · #abd728

Split-complementary

Open in tool →

#d72854 · #d7ab28

#ab28d7 · #d75428 · #54d728

Contrast

#28abd7 as textRatioAAAA largeAAAFix
Aaon white
2.66:1failfailfail
  • AA: use #1d7f9f as the text (4.58:1)
  • AAA: use #166079 as the text (7.04:1)
  • AA: or shift the background to #363636 (4.54:1)
  • AAA: or shift the background to #121212 (7.04:1)
Aaon black
7.9:1passpasspassPasses 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 #28abd7 as the background.

Brands using this color

Fonts for this mood

#28abd7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28abd7
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 #28abd7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28abd7-9cb5c4-df4e70-1f242d-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