Color

#155cd5

#155cd5
hex#155cd5
rgbrgb(21, 92, 213)
hslhsl(218, 82%, 46%)
oklchoklch(0.511 0.198 260.8)
Closest name: God of Rain (#4466cc)Relative luminance 0.1262

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d58f15

#15bcd5 · #2f15d5

#d5155c · #5cd515

Split-complementary

Open in tool →

#d52f15 · #bcd515

#d515bc · #d58f15 · #15d52f

Contrast

#155cd5 as textRatioAAAA largeAAAFix
Aaon white
5.96:1passpassfail
  • AAA: use #1352be as the text (7.05:1)
Aaon black
3.52:1failpassfail
  • AA: use #2a70ea as the text (4.6:1)
  • AAA: use #6195ef as the text (7.05:1)
  • AA: or shift the background to #e0e0e0 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #155cd5 as the background.

Brands using this color

Fonts for this mood

#155cd5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #155cd5
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 #155cd5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/155cd5-9ca6c4-df644e-201f2d-e9f0f1?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