Color

#0c91cf

#0c91cf
hex#0c91cf
rgbrgb(12, 145, 207)
hslhsl(199, 89%, 43%)
oklchoklch(0.624 0.136 238.1)
Closest name: Blue Burst (#309cd0)Relative luminance 0.2483

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cf4a0c

#0ccfab · #0c30cf

#cf0c91 · #91cf0c

Split-complementary

Open in tool →

#cf0c30 · #cfab0c

#ab0ccf · #cf4a0c · #30cf0c

Contrast

#0c91cf as textRatioAAAA largeAAAFix
Aaon white
3.52:1failpassfail
  • AA: use #0a7db2 as the text (4.58:1)
  • AAA: use #085f87 as the text (7.01:1)
  • AA: or shift the background to #212121 (4.58:1)
Aaon black
5.97:1passpassfail
  • AAA: use #0d9fe3 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c91cf 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

#0c91cf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c91cf
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 #0c91cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c91cf-9cb3c4-df4e66-1f232d-e9f1f0?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