Color

#127cd3

#127cd3
hex#127cd3
rgbrgb(18, 124, 211)
hslhsl(207, 84%, 45%)
oklchoklch(0.578 0.159 250.5)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1925

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d36912

#12d3ca · #121cd3

#d3127c · #7cd312

Split-complementary

Open in tool →

#d3121c · #d3ca12

#ca12d3 · #d36912 · #1cd312

Contrast

#127cd3 as textRatioAAAA largeAAAFix
Aaon white
4.33:1failpassfail
  • AA: use #1277ca as the text (4.65:1)
  • AAA: use #0d5b9b as the text (7.03:1)
  • AA: or shift the background to #0a0a0a (4.57:1)
Aaon black
4.85:1passpassfail
  • AAA: use #359bed as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #127cd3 as the background.

Brands using this color

Fonts for this mood

#127cd3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #127cd3
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 #127cd3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/127cd3-9cadc4-df4e53-1f212d-e9f1f1?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