Color

#2f91b1

#2f91b1
hex#2f91b1
rgbrgb(47, 145, 177)
hslhsl(195, 58%, 44%)
oklchoklch(0.615 0.1 224.1)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2403

Colors that go with #2f91b1

Charcoal, Copper and Crimson lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b1502f

#2fb191 · #2f50b1

#b12f91 · #91b12f

Split-complementary

Open in tool →

#b12f50 · #b1912f

#912fb1 · #b1502f · #50b12f

Contrast

#2f91b1 as textRatioAAAA largeAAAFix
Aaon white
3.62:1failpassfail
  • AA: use #297d99 as the text (4.68:1)
  • AAA: use #1f5f75 as the text (7.11:1)
  • AA: or shift the background to #1f1f1f (4.56:1)
Aaon black
5.81:1passpassfail
  • AAA: use #34a1c5 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 #2f91b1 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#2f91b1 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f91b1
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #2f91b1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f91b1-9cb5c4-df4e70-1f242d-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