Color

#288deb

#288deb
hex#288deb
rgbrgb(40, 141, 235)
hslhsl(209, 83%, 54%)
oklchoklch(0.635 0.167 251.3)
Closest name: dodgerblue (#1e90ff)Relative luminance 0.255

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eb8628

#28ebe8 · #282ceb

#eb288d · #8deb28

Split-complementary

Open in tool →

#eb282c · #ebe828

#e828eb · #eb8628 · #2ceb28

Contrast

#288deb as textRatioAAAA largeAAAFix
Aaon white
3.44:1failpassfail
  • AA: use #1476d2 as the text (4.61:1)
  • AAA: use #0f599f as the text (7.12:1)
  • AA: or shift the background to #242424 (4.51:1)
Aaon black
6.1:1passpassfail
  • AAA: use #449cee as the text (7.24:1)

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

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

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

tool url/palettes/new/288deb-9cacc4-df4e4e-1f212d-e9f1f1?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