brandsweets

Color

#4275cd

#4275cd
hex#4275cd
rgbrgb(66, 117, 205)
hslhsl(218, 58%, 53%)
oklchoklch(0.571 0.147 260.5)
Closest name: Campanula (#3473b7)Relative luminance 0.1829
CoolModern
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
4275cdcd9a42

#cd9a42

Analogous

Open in tool →
4275cd42bacd5442cd

#42bacd · #5442cd

Triadic

Open in tool →
4275cdcd427575cd42

#cd4275 · #75cd42

Split-complementary

Open in tool →
4275cdcd5442bacd42

#cd5442 · #bacd42

Tetradic

Open in tool →
4275cdcd42bacd9a4242cd54

#cd42ba · #cd9a42 · #42cd54

Contrast

#4275cd as textRatioAAAA largeAAAFix
Aaon white
4.51:1passpassfail
  • AAA: use #2b56a1 as the text (7.12:1)
Aaon black
4.66:1passpassfail
  • AAA: use #7298da as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4275cd as the background.

Brands using this color

Fonts for this mood

#4275cd reads as cool, modern. The font library is tagged with the same vocabulary:

Modern fonts →
mcpConnect your agent — build around #4275cd
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 #4275cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4275cd-9ca6c4-df644e-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