Color

#2d77d7

#2d77d7
hex#2d77d7
rgbrgb(45, 119, 215)
hslhsl(214, 68%, 51%)
oklchoklch(0.575 0.164 256.6)
Closest name: Royal Blue (#4169e1)Relative luminance 0.1866

Colors that go with #2d77d7

Charcoal, Crimson and Copper 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 →

#d78d2d

#2dccd7 · #382dd7

#d72d77 · #77d72d

Split-complementary

Open in tool →

#d7382d · #ccd72d

#d72dcc · #d78d2d · #2dd738

Contrast

#2d77d7 as textRatioAAAA largeAAAFix
Aaon white
4.44:1failpassfail
  • AA: use #2974d6 as the text (4.6:1)
  • AAA: use #1f58a3 as the text (7.04:1)
  • AA: or shift the background to #080808 (4.51:1)
Aaon black
4.73:1passpassfail
  • AAA: use #6098e1 as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d77d7 as the background.

Brands using this color

Fonts for this mood

#2d77d7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d77d7
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 #2d77d7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d77d7-9ca9c4-df5a4e-1f1f2d-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