Color

#1d9eaf

#1d9eaf
hex#1d9eaf
rgbrgb(29, 158, 175)
hslhsl(187, 72%, 40%)
oklchoklch(0.642 0.105 208.9)
Closest name: Baltic (#279d9f)Relative luminance 0.2781

Tints & shades

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

Harmonies

Complementary

Open in tool →

#af2e1d

#1daf77 · #1d55af

#af1d9e · #9eaf1d

Split-complementary

Open in tool →

#af1d55 · #af771d

#771daf · #af2e1d · #55af1d

Contrast

#1d9eaf as textRatioAAAA largeAAAFix
Aaon white
3.2:1failpassfail
  • AA: use #177f8c as the text (4.72:1)
  • AAA: use #115f69 as the text (7.33:1)
  • AA: or shift the background to #292929 (4.55:1)
Aaon black
6.56:1passpassfail
  • AAA: use #1ea6b8 as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d9eaf 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

#1d9eaf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d9eaf
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 #1d9eaf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d9eaf-a2b8be-df4e83-1f262d-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