Color

#288dc8

#288dc8
hex#288dc8
rgbrgb(40, 141, 200)
hslhsl(202, 67%, 47%)
oklchoklch(0.615 0.126 240)
Closest name: steelblue (#4682b4)Relative luminance 0.2367

Colors that go with #288dc8

Charcoal, Red and Copper 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 →

#c86228

#28c8b3 · #283dc8

#c8288d · #8dc828

Split-complementary

Open in tool →

#c8283d · #c8b328

#b328c8 · #c86228 · #3dc828

Contrast

#288dc8 as textRatioAAAA largeAAAFix
Aaon white
3.66:1failpassfail
  • AA: use #237baf as the text (4.64:1)
  • AAA: use #1a5d84 as the text (7.14:1)
  • AA: or shift the background to #1f1f1f (4.5:1)
Aaon black
5.73:1passpassfail
  • AAA: use #3b9fd8 as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #288dc8 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

#288dc8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #288dc8
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 #288dc8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/288dc8-9cb1c4-df4e5f-1f222d-e9f1f0?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