Color

#259bbb

#259bbb
hex#259bbb
rgbrgb(37, 155, 187)
hslhsl(193, 67%, 44%)
oklchoklch(0.641 0.109 221.2)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.2742

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bb4625

#25bb91 · #2550bb

#bb259b · #9bbb25

Split-complementary

Open in tool →

#bb2550 · #bb9125

#9125bb · #bb4625 · #50bb25

Contrast

#259bbb as textRatioAAAA largeAAAFix
Aaon white
3.24:1failpassfail
  • AA: use #1e7f99 as the text (4.61:1)
  • AAA: use #175f73 as the text (7.19:1)
  • AA: or shift the background to #262626 (4.67:1)
Aaon black
6.48:1passpassfail
  • AAA: use #27a2c4 as the text (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #259bbb 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

#259bbb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #259bbb
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 #259bbb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/259bbb-a2b5be-df4e75-1f242d-e9f1ef?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