Color

#178ed3

#178ed3
hex#178ed3
rgbrgb(23, 142, 211)
hslhsl(202, 80%, 46%)
oklchoklch(0.62 0.141 242.1)
Closest name: Blue Burst (#309cd0)Relative luminance 0.2423

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d35c17

#17d3ba · #1730d3

#d3178e · #8ed317

Split-complementary

Open in tool →

#d31730 · #d3ba17

#ba17d3 · #d35c17 · #30d317

Contrast

#178ed3 as textRatioAAAA largeAAAFix
Aaon white
3.59:1failpassfail
  • AA: use #147cb8 as the text (4.56:1)
  • AAA: use #0f5d8a as the text (7.11:1)
  • AA: or shift the background to #1f1f1f (4.59:1)
Aaon black
5.85:1passpassfail
  • AAA: use #1e9de6 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #178ed3 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

#178ed3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #178ed3
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 #178ed3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/178ed3-9cb1c4-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