Color

#28aaaf

#28aaaf
hex#28aaaf
rgbrgb(40, 170, 175)
hslhsl(182, 63%, 42%)
oklchoklch(0.674 0.106 198.9)
Closest name: lightseagreen (#20b2aa)Relative luminance 0.323

Tints & shades

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

Harmonies

Complementary

Open in tool →

#af2c28

#28af70 · #2867af

#af28aa · #aaaf28

Split-complementary

Open in tool →

#af2867 · #af7028

#7028af · #af2c28 · #67af28

Contrast

#28aaaf as textRatioAAAA largeAAAFix
Aaon white
2.82:1failfailfail
  • AA: use #1e8285 as the text (4.58:1)
  • AAA: use #176164 as the text (7.17:1)
  • AA: or shift the background to #303030 (4.69:1)
  • AAA: or shift the background to #0a0a0a (7.03:1)
Aaon black
7.46:1passpasspassPasses 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 #28aaaf 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

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

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

tool url/palettes/new/28aaaf-a2babe-d45990-1f272d-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