Color

#283d67

#283d67
hex#283d67
rgbrgb(40, 61, 103)
hslhsl(220, 44%, 28%)
oklchoklch(0.365 0.078 263)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0477

Tints & shades

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

Harmonies

Complementary

Open in tool →

#675228

#285c67 · #322867

#67283d · #3d6728

Split-complementary

Open in tool →

#673228 · #5c6728

#67285c · #675228 · #286732

Contrast

#283d67 as textRatioAAAA largeAAAFix
Aaon white
10.75:1passpasspassPasses AAA — no fix needed.
Aaon black
1.95:1failfailfail
  • AA: use #5276bc as the text (4.68:1)
  • AAA: use #7b96cc as the text (7.08:1)
  • AA: or shift the background to #a8a8a8 (4.52:1)
  • AAA: or shift the background to #d1d1d1 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #283d67 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

#283d67 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #283d67
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 #283d67 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/283d67-9ca5c4-df694e-211f2d-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