Color

#279add

#279add
hex#279add
rgbrgb(39, 154, 221)
hslhsl(202, 73%, 51%)
oklchoklch(0.656 0.139 240.6)
Closest name: Blue Burst (#309cd0)Relative luminance 0.2876

Colors that go with #279add

Charcoal, Orange Red and Amber 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 →

#dd6a27

#27ddc5 · #273fdd

#dd279a · #9add27

Split-complementary

Open in tool →

#dd273f · #ddc527

#c527dd · #dd6a27 · #3fdd27

Contrast

#279add as textRatioAAAA largeAAAFix
Aaon white
3.11:1failpassfail
  • AA: use #1c7db5 as the text (4.52:1)
  • AAA: use #155e89 as the text (7.01:1)
  • AA: or shift the background to #2b2b2b (4.55:1)
Aaon black
6.75:1passpassfail
  • AAA: use #309edf 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 #279add as the background.

Brands using this color

Fonts for this mood

#279add reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #279add
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 #279add and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/279add-9cb1c4-df4e5f-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