Color

#0239bb

#0239bb
hex#0239bb
rgbrgb(2, 57, 187)
hslhsl(222, 98%, 37%)
oklchoklch(0.417 0.209 263.1)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0653

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bb8302

#0296bb · #2702bb

#bb0239 · #39bb02

Split-complementary

Open in tool →

#bb2702 · #96bb02

#bb0296 · #bb8302 · #02bb27

Contrast

#0239bb as textRatioAAAA largeAAAFix
Aaon white
9.11:1passpasspassPasses AAA — no fix needed.
Aaon black
2.31:1failfailfail
  • AA: use #2b6afd as the text (4.58:1)
  • AAA: use #6895fd as the text (7.31:1)
  • AA: or shift the background to #b8b8b8 (4.59:1)
  • AAA: or shift the background to #e3e3e3 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0239bb 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

#0239bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0239bb
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 #0239bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0239bb-9ca3c4-df6e4e-211f2d-e9eff1?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