Color

#508ab4

#508ab4
hex#508ab4
rgbrgb(80, 138, 180)
hslhsl(205, 40%, 51%)
oklchoklch(0.611 0.088 241.6)
Closest name: steelblue (#4682b4)Relative luminance 0.2318

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b47a50

#50b4ac · #5058b4

#b4508a · #8ab450

Split-complementary

Open in tool →

#b45058 · #b4ac50

#ac50b4 · #b47a50 · #58b450

Contrast

#508ab4 as textRatioAAAA largeAAAFix
Aaon white
3.73:1failpassfail
  • AA: use #457aa1 as the text (4.61:1)
  • AAA: use #345c79 as the text (7.11:1)
  • AA: or shift the background to #1c1c1c (4.57:1)
Aaon black
5.64:1passpassfail
  • AAA: use #699bbf as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #508ab4 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

#508ab4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #508ab4
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 #508ab4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/508ab4-9cafc4-df4e58-1f212d-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