Color

#188ea5

#188ea5
hex#188ea5
rgbrgb(24, 142, 165)
hslhsl(190, 75%, 37%)
oklchoklch(0.597 0.101 215.3)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2226

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a52f18

#18a576 · #1847a5

#a5188e · #8ea518

Split-complementary

Open in tool →

#a51847 · #a57618

#7618a5 · #a52f18 · #47a518

Contrast

#188ea5 as textRatioAAAA largeAAAFix
Aaon white
3.85:1failpassfail
  • AA: use #157e93 as the text (4.73:1)
  • AAA: use #106070 as the text (7.17:1)
  • AA: or shift the background to #1a1a1a (4.52:1)
Aaon black
5.45:1passpassfail
  • AAA: use #1ba4c0 as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #188ea5 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#188ea5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #188ea5
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 #188ea5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/188ea5-a2b6be-df4e7c-1f252d-e9f1ef?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