Color

#286da9

#286da9
hex#286da9
rgbrgb(40, 109, 169)
hslhsl(208, 62%, 41%)
oklchoklch(0.521 0.117 248.5)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1425

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a96428

#28a9a5 · #282ca9

#a9286d · #6da928

Split-complementary

Open in tool →

#a9282c · #a9a528

#a528a9 · #a96428 · #2ca928

Contrast

#286da9 as textRatioAAAA largeAAAFix
Aaon white
5.45:1passpassfail
  • AAA: use #215a8c as the text (7.23:1)
Aaon black
3.85:1failpassfail
  • AA: use #2d7abe as the text (4.64:1)
  • AAA: use #569bd7 as the text (7.07:1)
  • AA: or shift the background to #ebebeb (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #286da9 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

#286da9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #286da9
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 #286da9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/286da9-9cadc4-df4e51-1f212d-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