Color

#1d7581

#1d7581
hex#1d7581
rgbrgb(29, 117, 129)
hslhsl(187, 63%, 31%)
oklchoklch(0.518 0.081 208.6)
Closest name: Bermuda (#1b7d8d)Relative luminance 0.1457

Tints & shades

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

Harmonies

Complementary

Open in tool →

#81291d

#1d815b · #1d4381

#811d75 · #75811d

Split-complementary

Open in tool →

#811d43 · #815b1d

#5b1d81 · #81291d · #43811d

Contrast

#1d7581 as textRatioAAAA largeAAAFix
Aaon white
5.37:1passpassfail
  • AAA: use #185f68 as the text (7.3:1)
Aaon black
3.91:1failpassfail
  • AA: use #20818d as the text (4.59:1)
  • AAA: use #2aa6b7 as the text (7.24:1)
  • AA: or shift the background to #ebebeb (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d7581 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

#1d7581 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d7581
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 #1d7581 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d7581-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