Color

#282caf

#282caf
hex#282caf
rgbrgb(40, 44, 175)
hslhsl(238, 63%, 42%)
oklchoklch(0.395 0.2 271.3)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0535

Tints & shades

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

Harmonies

Complementary

Open in tool →

#afaa28

#2870af · #6728af

#af282c · #2caf28

Split-complementary

Open in tool →

#af6728 · #70af28

#af2870 · #afaa28 · #28af67

Contrast

#282caf as textRatioAAAA largeAAAFix
Aaon white
10.15:1passpasspassPasses AAA — no fix needed.
Aaon black
2.07:1failfailfail
  • AA: use #6569dc as the text (4.61:1)
  • AAA: use #8b8ee5 as the text (7.1:1)
  • AA: or shift the background to #adadad (4.52:1)
  • AAA: or shift the background to #d9d9d9 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #282caf 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

#282caf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #282caf
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 #282caf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/282caf-9f9cc4-df944e-251f2d-e9edf1?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