Color

#28588f

#28588f
hex#28588f
rgbrgb(40, 88, 143)
hslhsl(212, 56%, 36%)
oklchoklch(0.455 0.104 253.7)
Closest name: Blue Chip (#1d5699)Relative luminance 0.0941

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8f5f28

#288c8f · #2c288f

#8f2858 · #588f28

Split-complementary

Open in tool →

#8f2c28 · #8c8f28

#8f288c · #8f5f28 · #288f2c

Contrast

#28588f as textRatioAAAA largeAAAFix
Aaon white
7.28:1passpasspassPasses AAA — no fix needed.
Aaon black
2.88:1failfailfail
  • AA: use #3676bf as the text (4.5:1)
  • AAA: use #689ad4 as the text (7.16:1)
  • AA: or shift the background to #cccccc (4.54:1)
  • AAA: or shift the background to #fcfcfc (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 #28588f 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

#28588f reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28588f
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 #28588f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28588f-9caac4-df564e-1f202d-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