Color

#286bd7

#286bd7
hex#286bd7
rgbrgb(40, 107, 215)
hslhsl(217, 69%, 50%)
oklchoklch(0.547 0.179 259.8)
Closest name: royalblue (#4169e1)Relative luminance 0.1587

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d79428

#28c3d7 · #3c28d7

#d7286b · #6bd728

Split-complementary

Open in tool →

#d73c28 · #c3d728

#d728c3 · #d79428 · #28d73c

Contrast

#286bd7 as textRatioAAAA largeAAAFix
Aaon white
5.03:1passpassfail
  • AAA: use #2056ac as the text (7.03:1)
Aaon black
4.17:1failpassfail
  • AA: use #3474da as the text (4.66:1)
  • AAA: use #6897e3 as the text (7.12:1)
  • AA: or shift the background to #f5f5f5 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #286bd7 as the background.

Brands using this color

Fonts for this mood

#286bd7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #286bd7
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 #286bd7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/286bd7-9ca7c4-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