Color

#283c95

#283c95
hex#283c95
rgbrgb(40, 60, 149)
hslhsl(229, 58%, 37%)
oklchoklch(0.398 0.148 269)
Closest name: Bluebell (#333399)Relative luminance 0.0585

Tints & shades

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

Harmonies

Complementary

Open in tool →

#958128

#287295 · #4a2895

#95283c · #3c9528

Split-complementary

Open in tool →

#954a28 · #729528

#952872 · #958128 · #28954a

Contrast

#283c95 as textRatioAAAA largeAAAFix
Aaon white
9.67:1passpasspassPasses AAA — no fix needed.
Aaon black
2.17:1failfailfail
  • AA: use #566dd2 as the text (4.51:1)
  • AAA: use #8293de as the text (7.18:1)
  • AA: or shift the background to #b3b3b3 (4.61:1)
  • AAA: or shift the background to #dedede (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 #283c95 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

#283c95 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #283c95
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 #283c95 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/283c95-9c9fc4-df7e4e-231f2d-e9eef1?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