Color

#188bcd

#188bcd
hex#188bcd
rgbrgb(24, 139, 205)
hslhsl(202, 79%, 45%)
oklchoklch(0.61 0.137 241.6)
Closest name: steelblue (#4682b4)Relative luminance 0.2307

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cd5b18

#18cdb5 · #1830cd

#cd188b · #8bcd18

Split-complementary

Open in tool →

#cd1830 · #cdb518

#b518cd · #cd5b18 · #30cd18

Contrast

#188bcd as textRatioAAAA largeAAAFix
Aaon white
3.74:1failpassfail
  • AA: use #157bb7 as the text (4.62:1)
  • AAA: use #105d89 as the text (7.12:1)
  • AA: or shift the background to #1c1c1c (4.56:1)
Aaon black
5.61:1passpassfail
  • AAA: use #249ee5 as the text (7.1:1)

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

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

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

tool url/palettes/new/188bcd-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