Color

#2f5da7

#2f5da7
hex#2f5da7
rgbrgb(47, 93, 167)
hslhsl(217, 56%, 42%)
oklchoklch(0.485 0.129 259.5)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1122

Colors that go with #2f5da7

Charcoal, Sea Green and Sienna 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 →

#a7792f

#2f99a7 · #3d2fa7

#a72f5d · #5da72f

Split-complementary

Open in tool →

#a73d2f · #99a72f

#a72f99 · #a7792f · #2fa73d

Contrast

#2f5da7 as textRatioAAAA largeAAAFix
Aaon white
6.47:1passpassfail
  • AAA: use #2c569b as the text (7.21:1)
Aaon black
3.24:1failpassfail
  • AA: use #4075c9 as the text (4.61:1)
  • AAA: use #7097d7 as the text (7.1:1)
  • AA: or shift the background to #d9d9d9 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f5da7 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

#2f5da7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f5da7
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 #2f5da7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f5da7-9ca7c4-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