Color

#2b5eb1

#2b5eb1
hex#2b5eb1
rgbrgb(43, 94, 177)
hslhsl(217, 61%, 43%)
oklchoklch(0.493 0.143 259.7)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1169

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b17d2b

#2ba1b1 · #3a2bb1

#b12b5e · #5eb12b

Split-complementary

Open in tool →

#b13a2b · #a1b12b

#b12ba1 · #b17d2b · #2bb13a

Contrast

#2b5eb1 as textRatioAAAA largeAAAFix
Aaon white
6.29:1passpassfail
  • AAA: use #2857a4 as the text (7.02:1)
Aaon black
3.34:1failpassfail
  • AA: use #3a73cf as the text (4.53:1)
  • AAA: use #6b96db as the text (7.01:1)
  • AA: or shift the background to #dbdbdb (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b5eb1 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

#2b5eb1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b5eb1
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 #2b5eb1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b5eb1-9ca7c4-df624e-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