Color

#288a7d

#288a7d
hex#288a7d
rgbrgb(40, 138, 125)
hslhsl(172, 55%, 35%)
oklchoklch(0.575 0.091 182.3)
Closest name: Go Go Green (#008a7d)Relative luminance 0.2011

Colors that go with #288a7d

Charcoal, Copper and Medium Violet Red 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.

Real palettes that use #288a7d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a2835

#288a4c · #28668a

#7d288a · #8a7d28

Split-complementary

Open in tool →

#8a2866 · #8a4c28

#4c288a · #8a2835 · #668a28

Contrast

#288a7d as textRatioAAAA largeAAAFix
Aaon white
4.18:1failpassfail
  • AA: use #268276 as the text (4.63:1)
  • AAA: use #1d6359 as the text (7.04:1)
  • AA: or shift the background to #0f0f0f (4.58:1)
Aaon black
5.02:1passpassfail
  • AAA: use #30a696 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #288a7d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #288a7d
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 #288a7d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/288a7d-a2bebe-d459a5-1f292d-e9f1ec?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