Color

#276bb0

#276bb0
hex#276bb0
rgbrgb(39, 107, 176)
hslhsl(210, 64%, 42%)
oklchoklch(0.521 0.128 252)
Closest name: Campanula (#3473b7)Relative luminance 0.1408

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b06b27

#27b0b0 · #2727b0

#b0276b · #6bb027

Split-complementary

Open in tool →

#b02727 · #b0b027

#b027b0 · #b06b27 · #27b027

Contrast

#276bb0 as textRatioAAAA largeAAAFix
Aaon white
5.5:1passpassfail
  • AAA: use #205992 as the text (7.23:1)
Aaon black
3.82:1failpassfail
  • AA: use #2b78c5 as the text (4.6:1)
  • AAA: use #5c9cdb as the text (7.23:1)
  • AA: or shift the background to #ebebeb (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #276bb0 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

#276bb0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #276bb0
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 #276bb0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/276bb0-9cabc4-df514e-1f202d-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