Color

#1d34b9

#1d34b9
hex#1d34b9
rgbrgb(29, 52, 185)
hslhsl(231, 73%, 42%)
oklchoklch(0.413 0.207 267.3)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0622

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b9a21d

#1d83b9 · #541db9

#b91d34 · #34b91d

Split-complementary

Open in tool →

#b9541d · #83b91d

#b91d83 · #b9a21d · #1db954

Contrast

#1d34b9 as textRatioAAAA largeAAAFix
Aaon white
9.36:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #5369e4 as the text (4.51:1)
  • AAA: use #7f8feb as the text (7.03:1)
  • AA: or shift the background to #b5b5b5 (4.56:1)
  • AAA: or shift the background to #e0e0e0 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d34b9 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

#1d34b9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d34b9
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 #1d34b9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d34b9-9c9ec4-df834e-231f2d-e9eef1?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