Color

#2540da

#2540da
hex#2540da
rgbrgb(37, 64, 218)
hslhsl(231, 71%, 50%)
oklchoklch(0.469 0.233 267.3)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0912

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dabf25

#259bda · #6425da

#da2540 · #40da25

Split-complementary

Open in tool →

#da6425 · #9bda25

#da259b · #dabf25 · #25da64

Contrast

#2540da as textRatioAAAA largeAAAFix
Aaon white
7.44:1passpasspassPasses AAA — no fix needed.
Aaon black
2.82:1failfailfail
  • AA: use #556ae2 as the text (4.55:1)
  • AAA: use #8190ea as the text (7.11:1)
  • AA: or shift the background to #cccccc (4.63:1)
  • AAA: or shift the background to #fafafa (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2540da 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

#2540da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2540da
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 #2540da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2540da-9c9ec4-df834e-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