Color

#409da5

#409da5
hex#409da5
rgbrgb(64, 157, 165)
hslhsl(185, 44%, 45%)
oklchoklch(0.644 0.087 203.1)
Closest name: Baltic (#279d9f)Relative luminance 0.2792

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a54940

#40a57b · #406aa5

#a5409d · #9da540

Split-complementary

Open in tool →

#a5406a · #a57b40

#7b40a5 · #a54940 · #6aa540

Contrast

#409da5 as textRatioAAAA largeAAAFix
Aaon white
3.19:1failpassfail
  • AA: use #358188 as the text (4.52:1)
  • AAA: use #275e63 as the text (7.32:1)
  • AA: or shift the background to #292929 (4.56:1)
Aaon black
6.58:1passpassfail
  • AAA: use #43a4ad as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #409da5 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

#409da5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #409da5
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 #409da5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/409da5-a2b8be-df4e88-1f262d-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