Color

#4781eb

#4781eb
hex#4781eb
rgbrgb(71, 129, 235)
hslhsl(219, 80%, 60%)
oklchoklch(0.618 0.171 261.3)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2304

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ebb147

#47d2eb · #6047eb

#eb4781 · #81eb47

Split-complementary

Open in tool →

#eb6047 · #d2eb47

#eb47d2 · #ebb147 · #47eb60

Contrast

#4781eb as textRatioAAAA largeAAAFix
Aaon white
3.74:1failpassfail
  • AA: use #3071e8 as the text (4.51:1)
  • AAA: use #1551c1 as the text (7.05:1)
  • AA: or shift the background to #1c1c1c (4.55:1)
Aaon black
5.61:1passpassfail
  • AAA: use #6897ee as the text (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4781eb as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#4781eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4781eb
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 #4781eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4781eb-9ca5c4-df664e-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