Color

#2575a7

#2575a7
hex#2575a7
rgbrgb(37, 117, 167)
hslhsl(203, 64%, 40%)
oklchoklch(0.539 0.109 241)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1591

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a75725

#25a798 · #2534a7

#a72575 · #75a725

Split-complementary

Open in tool →

#a72534 · #a79825

#9825a7 · #a75725 · #34a725

Contrast

#2575a7 as textRatioAAAA largeAAAFix
Aaon white
5.02:1passpassfail
  • AAA: use #1d5e86 as the text (7.01:1)
Aaon black
4.18:1failpassfail
  • AA: use #277bb0 as the text (4.55:1)
  • AAA: use #439dd6 as the text (7.03:1)
  • AA: or shift the background to #f5f5f5 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2575a7 as the background.

Brands using this color

Fonts for this mood

#2575a7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2575a7
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 #2575a7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2575a7-9cb0c4-df4e5d-1f222d-e9f1f0?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