Color

#1277ba

#1277ba
hex#1277ba
rgbrgb(18, 119, 186)
hslhsl(204, 82%, 40%)
oklchoklch(0.551 0.134 245.4)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1687

Colors that go with #1277ba

Charcoal, Crimson 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 →

#ba5512

#12baa9 · #1223ba

#ba1277 · #77ba12

Split-complementary

Open in tool →

#ba1223 · #baa912

#a912ba · #ba5512 · #23ba12

Contrast

#1277ba as textRatioAAAA largeAAAFix
Aaon white
4.8:1passpassfail
  • AAA: use #0e5c90 as the text (7.11:1)
Aaon black
4.37:1failpassfail
  • AA: use #137abe as the text (4.56:1)
  • AAA: use #2a9dea as the text (7.11:1)
  • AA: or shift the background to #fafafa (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1277ba as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1277ba reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1277ba
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 #1277ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1277ba-9cafc4-df4e5a-1f222d-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