Color

#255b8d

#255b8d
hex#255b8d
rgbrgb(37, 91, 141)
hslhsl(209, 58%, 35%)
oklchoklch(0.46 0.1 249.4)
Closest name: Blue Chip (#1d5699)Relative luminance 0.098

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8d5825

#258d8b · #25278d

#8d255b · #5b8d25

Split-complementary

Open in tool →

#8d2527 · #8d8b25

#8b258d · #8d5825 · #278d25

Contrast

#255b8d as textRatioAAAA largeAAAFix
Aaon white
7.1:1passpasspassPasses AAA — no fix needed.
Aaon black
2.96:1failfailfail
  • AA: use #3178b9 as the text (4.52:1)
  • AAA: use #5e9bd4 as the text (7.12:1)
  • AA: or shift the background to #cfcfcf (4.55:1)
  • AAA: or shift the background to #ffffff (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 #255b8d 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

#255b8d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #255b8d
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 #255b8d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/255b8d-9cacc4-df4e4e-1f212d-e9f1f1?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