Color

#279bb0

#279bb0
hex#279bb0
rgbrgb(39, 155, 176)
hslhsl(189, 64%, 42%)
oklchoklch(0.637 0.102 213)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2701

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b03b27

#27b080 · #2757b0

#b0279b · #9bb027

Split-complementary

Open in tool →

#b02757 · #b08027

#8027b0 · #b03b27 · #57b027

Contrast

#279bb0 as textRatioAAAA largeAAAFix
Aaon white
3.28:1failpassfail
  • AA: use #208192 as the text (4.55:1)
  • AAA: use #18606d as the text (7.16:1)
  • AA: or shift the background to #262626 (4.61:1)
Aaon black
6.4:1passpassfail
  • AAA: use #29a6bc as the text (7.27:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #279bb0 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

#279bb0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #279bb0
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 #279bb0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/279bb0-a2b7be-df4e7e-1f252d-e9f1ee?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