Color

#286ddc

#286ddc
hex#286ddc
rgbrgb(40, 109, 220)
hslhsl(217, 72%, 51%)
oklchoklch(0.555 0.184 259.8)
Closest name: royalblue (#4169e1)Relative luminance 0.1656

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dc9728

#28c7dc · #3d28dc

#dc286d · #6ddc28

Split-complementary

Open in tool →

#dc3d28 · #c7dc28

#dc28c7 · #dc9728 · #28dc3d

Contrast

#286ddc as textRatioAAAA largeAAAFix
Aaon white
4.87:1passpassfail
  • AAA: use #1d55af as the text (7.07:1)
Aaon black
4.31:1failpassfail
  • AA: use #3173dd as the text (4.63:1)
  • AAA: use #6597e6 as the text (7.12:1)
  • AA: or shift the background to #f7f7f7 (4.55:1)

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

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/286ddc-9ca7c4-df624e-201f2d-e9f0f1?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