Color

#318dbf

#318dbf
hex#318dbf
rgbrgb(49, 141, 191)
hslhsl(201, 59%, 47%)
oklchoklch(0.612 0.113 237)
Closest name: steelblue (#4682b4)Relative luminance 0.2346

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf6331

#31bfa9 · #3146bf

#bf318d · #8dbf31

Split-complementary

Open in tool →

#bf3146 · #bfa931

#a931bf · #bf6331 · #46bf31

Contrast

#318dbf as textRatioAAAA largeAAAFix
Aaon white
3.69:1failpassfail
  • AA: use #2b7ba6 as the text (4.68:1)
  • AAA: use #205d7e as the text (7.17:1)
  • AA: or shift the background to #1c1c1c (4.62:1)
Aaon black
5.69:1passpassfail
  • AAA: use #449ecf 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 #318dbf 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

#318dbf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #318dbf
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 #318dbf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/318dbf-9cb1c4-df4e62-1f222d-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